Stopped stuttering but new problems

Stopped stuttering but new problems When i had a severe stutter — difficult to speak, but knew what i wanted to say Now i have a little/no stutter — easy to speak, but NO idea what to say (my brain is just blank or jumbled, and my vocab becomes poor) I thought communicating would be perfect and easy without a stutter, so i’m not sure why i’m still struggling. Is this because of the transition from stuttering all the time to none? I’m in college and want to get better at talking with others without sounding nervous or dumb. Any tips? or does it just get better with time?