I strongly relate to doubt about whether I'm in God's plans at all. Right now my prayer routine has pretty much stopped due to the sense that my prayers over the last 4 years have been in vain. I would say the Jesus Prayer regularly for an hour in the morning and evening and have all sorts of physical sensations that gave me hope I was getting somewhere. I know enough that it's not about the sensations, but when that's the only consolation of 3 years of disciplined morning and evening prayers, it's hard to not grasp at anything significant.Congratulations for finding a church and spiritual elders you were seeking. I've been in isolation for large parts of the lockdown period, since I live alone and also chose to stop attending my local church, and I can also attest to the increased demonic attacks, as well as the greater awareness of God's presence, though I'm sure not to the extent of someone who is truly alone and away from the world for years.
I'm not sure if this relates to your personal demonic attacks or the OP's, but the worst ones that hit me took the form of doubt in my election. I have read so much in the Bible about how God foreknew and chose some and rejected others based completely on His sovereign will, not any virtue or merit of their own, that I personally can't deny the doctrine. I'm not bringing this up to start a discussion about election, as I'm sure there are threads for that already. This is to describe my own personal struggle with demons. When I first accepted the reality of God the Son and his identity with the Father and the Holy Spirit, I was fully assured of His reality, His presence, of God's protection around me, totally confident in my eternal destiny and my deliverance from the evil that had surrounded my life up to that point due to ignorance and sin. But as the isolation continued, especially when I began a prayer rule instead of relatively aimless Bible reading, and began waking up many hours before sunrise to read the Bible in isolated places outdoors, primarily Psalms and the Gospels, I started to see everything written in Psalms about how wicked evildoers will be destroyed forever by the Lord as pertaining to myself. I was not able to shake the conviction that I am a condemned sinner who loves evil, hates God, and can do nothing about it because I was preordained to that destiny. This in turn breeds hateful thoughts toward God, self-condemnation, and thoughts like "forget it, I may as well give up these beliefs since I'm already damned," even though I felt like Peter must have when he said "Lord, to whom shall we go? You have the words of eternal life, and we have believed, and have come to know, that you are the Holy One of God." I felt crushed by my beliefs, but felt I had nowhere else to go. I was living each day just to get to the end of it, in extreme fear, dread, and psychosomatic pain while forcing myself to continue the prayer rule, early waking, and trying to force myself to perform good deeds such as concentrating properly on the easy work-from-home job I don't deserve, which became nearly impossible.
On Easter Sunday, an incident happened that led me to believe Jesus had communicated his love for me. I had hope at last that my status was affirmed, that I was on the right track. Then as the days passed and this entity increased it's activity, despite my prayers (or more likely because of them), I found it harder to keep up my practice. When I write about demonic activity, I mean a palpable sense of a supernatural being moving inside and outside of me. I cannot see it, but I have a strong felt sense of it and know where it is and can feel it touching and probing and even have a sense of its shape.
When it manifests I feel goosebumps all over my body and a chill in the air. I could write more about it, but I just want it understood that this is a supernatural entity, not demonic influence of my thoughts (though I do believe influence of my emotions are its domain). I've commanded in Jesus's name, prayed to Archangel Michael and the Saints, listened to recorded deliverance prayers, all to no avail. Whatever it is it clearly believes it has a right to be attached to me and though my prayers agitate it greatly, it is still here and is going nowhere.
After getting little response from the emails I sent out to various clergy, it has become really hard to pray with conviction. I feel very discouraged now. When I kneel to pray it comes to mind that it's all in vain. I was listening recently to Father Piotr Glas talking about the demonic realm, exorcism and how people write to him from parishes far and wide because their priests don't take the demonic seriously. All the Catholic churches local to me require that attendance be registered for track and trace. I'm not going to do that. How can I even talk to a priest about these things if he cannot see the evil being perpetrated all around him.