What is the first step?

What is the first step? So I 25F, almost 26, long story short I spent the last 7,5+ years isolating myself from everyone. Literally every, single day inside my bedroom on my phone doing nothing but endless scrolling. I'm tired of that lifestyle. I wasted my youth. I dropped out of university, I have no social life, gained weight and have the experiences of a 17 year old. Yeah i do blame my stutter but I could be fit and stutter, have expeirences and stutter, have a university degrees and stutter, have friends and stutter. Now, I turned 1 problem in multiple more complex ones.