I don't know if anyone else has this problem but I have a really pacific issue. In general just I suck at talking. I find it hard to put my thoughts to words, I never know what words to use and I never know what to say.
I talk like xQc irl and the act of using words to hard I'm always slurring them out even tho I try not to and I have a stutter and a slip so saying thing is very hard.
You're dealing with both impediments and social issues here. This would be difficult for anyone. I highly suggest professional help, but if it's not available or you are unwilling, the next best thing would be to understand you're going to need to fail a lot with intentions of getting better, and it may never happen. I'm rooting for you.
Edit: To clarify, speech therapy and general therapy are what you will benefit from.