Help

Help So i used to shutter little bit when i was 7-8 years old after that i was self cured without any therapy or any medication it cure on its own....i was cure 100% until i became 19 years old and my stammering came back first it was very little hardly 1 word per month...then i started increasing now i am 24 years old and i can barely say anything i cannot spell majority of the words now and it is getting worse....please help i cannot figure out what wrong i am doing.