Hugs to all who suffer from these thoughts
I used to feel like this all the time. What helped for me was to realise that God made me and loves me as I am and if he thinks I'm worthwhile then who am I to say I am not!!! I still have arguments with God over when I feel like this but He usually wins the argument!
I will be praying for you all that you can feel the peace that comes from God's love and acceptance.
Apologies to anyone who finds this post offensive due to its blatant disregard for the no religion rule!!!!!