I've been quiet all my life and now my communication is weak
So yeah cut long story short, I'm 24 and people keep asking me to repeat myself or misunderstand me and I think it's due to me not speaking loud enough and also not clearly enough. I don't know how I can help myself to speak clear enough other than speak slowly but that will take forever to get used to. As I've been quiet and shy type with no friends at all, I've spent all my life alone in bedroom and now I think my communication is affected. I am so embarrassed when people keep asking me to repeat myself at work because it's my first job which I've started recently at the age of 24 and I feel I'm not good enough.
Any advice is helpful, thank you.