no family better than toxic family/friends imo
anyway try step by step, try talking with ppl, just simple 'hello' to someone to get used to people everyday, or talk a looot, depends how you feel about it, go for a walk everyday one step further than the day before... try maybe find some passion, like drawing and go to course where's not too many ppl.. don't force yourself too much, just a bit... for me it helped for social anxiety and bit for agora, maybe it would help you too...