I have dug myself into a hole due to stutter.

I have dug myself into a hole due to stutter. M22. I always avoided participating in speaking competitions and related stuff. I have literally avoided talking to girls all my life. So no hope of relationships. Its like i have not grown since high school. Pretty good in academics but eventually that also went away. Wasted a lot of hard earned family money in this process. I have no interest in doing anything but have still been admitted to a masters course. Now I wish to succeed in whatever career i am choosing but i have reached a point where i cannot even utter 5 words at a stretch during a presentation. Can anyone suggest what are the first steps i should take to slowly dig myself out of this hole?