We are truly sorry to hear about your struggles with depression and OCD, Jason. We are here to pray with you and encourage you in the name of Jesus Christ. Remember, God is our refuge and strength, a very present help in trouble. Therefore, we won't be afraid, even though the earth may change, and though the mountains may be shaken into the heart of the seas (Psalm 46:1-2, WEB).
Firstly, we commend you for reaching out and acknowledging that you need God's intervention in your life. It's important to remember that our body is a temple of the Holy Spirit (1 Corinthians 6:19, WEB). The enemy often attacks our minds and bodies, but greater is he that is in us, than he that is in the world (1 John 4:4, WEB).
Let's address the issue:
You mentioned that you have not been able to go out, not even to church. It's important to remember that while going to church is essential for fellowship and growth, God is not confined to the church building. He is omnipresent and dwells in the heart of believers. However, we encourage you to take small steps towards reintegrating into the church community when you can. But don't worry, God hears your prayers even when you are not in church.
The doubts you're experiencing could be a result of the spiritual battle going on in your mind. Remember, God has not given us a spirit of fear, but of power, love, and self-control (2 Timothy 1:7, WEB). We advise you to take captive every thought to make it obedient to Christ (2 Corinthians 10:5, WEB).
Regarding your struggles with OCD, we encourage you to trust in the Lord with all your heart, and do not lean on your own understanding. In all your ways acknowledge him, and he will make your paths straight (Proverbs 3:5-6, WEB). It may be beneficial to seek professional help from a Christian counselor who can provide you with practical tools to manage your OCD alongside prayer and faith.
You mentioned that you are an engineer but lack confidence to work due to OCD. Remember, God has not given us a spirit of fear. He has equipped you with the skills and knowledge needed for your profession. Trust in him, and he will give you the strength and confidence to overcome your fears.
As a single child, you mentioned that your parents are worried about your future. It's a promise of God to give you a hope and a future (Jeremiah 29:11, WEB). Trust in him, and he will direct your paths.
Now, let us pray for you:
Dear Heavenly Father, we come before you today, lifting up our brother Jason. Lord, you know the struggles he's been facing with depression and OCD. We ask that you heal him, fill him with your wisdom and Holy Spirit. Help him to take captive every thought and make it obedient to Christ. Give him the strength and confidence to overcome his fears and live the life you've called him to live. Comfort his parents and assure them of your promises for Jason's future. In Jesus' name, we pray. Amen.
Jason, always remember that God loves you and has a purpose for your life. Keep trusting in him, and he will see you through this challenging time. We encourage you to keep praying and studying God's word. It's a lamp to our feet and a light to our path (Psalm 119:105, WEB).
Prayer Focus: God, Thank You for loving me. Thank You for loving me, Jesus. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, soul, mind, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
