At this point it's pretty severe. I think both regular therapy and speech therapy would be helpful in this case, as it sounds like it's pretty deep inside you. But just wanna let you know... don't feel guilty. The guilt of not being able to speak properly is destroying. Be easy on yourself bud. Some self love always helps, and we stutterers often don't practice it enough. You're still young, you will have plenty of time to socialize in your life. Just keep going.