A question for you Josh, what is normal? If you want to know what's normal go onto Facebook and scroll through lots of people's timelines and you'll see lots of people on there all pretending to be normal. Another way is watch the Kardashians, that's normal with lots of money. I never do either because I find normal boring, I much prefer reality.
Can you imagine if Jesus had tried to be normal? Christianity would have got off the ground. Paul's advice on this is
Romans 12:2.
I don't know who's responsible for the way you feel about yourself, whether it's peer pressure, media, social media ... I don't know, but it's not healthy. You need to celebrate yourself, so don't act normal, God loves you the way you are as I'm sure your family do and if you've got real friends, so will they. Remember readily Jesus died for you. Yes there's plenty of room for improvement but that's the job of the Holy Spirit.
With regards to your doubts, the answer is to commune more with God in prayer and reading your Bible. Get a good bible study plan that you can relate to, there's plenty online. Spend quality time with Him in praise and adoration telling Him why you love Him, what it is about Him that you love and thanking Him for ..... you can do the list.
By worrying about Satan, you're encouraging His attacks. He hates to be ignored, focus instead on God.
Happy Christmas Josh
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Dear Lord God, I pray for my sweet brother Josh. He has been under attack from our enemy but not in the way he thinks. He's trying to undermine him, trying to convince him he's crazy; we both know he's fine. I pray for a huge helping of your Holy Spirit to give him the wisdom to recognise the source of these ideas and archive them in the back of his head.
Help him to grow in confidence, clinging to your promises of love, protection and building him up as your adopted son. Jesus himself told us, 'Nevertheless do not rejoice in this, that the spirits are subject to you, but rather rejoice because your names are written in heaven.” For this reason amongst many others we love you Lord.