I'm 15 and is it too late for me to get rid of my lisp?

Whenever I pronounce the /s/ word my tongue goes out of my mouth and it's really bothering when whenever I speak and sing☹️.

People keep mocking me for not being able to pronounce the /s/ properly and its slowly making me insecure everytime I talk. Is it too late for me to get rid of it? 😭 I really wanna sing, talk a lot and for people to understand what Im saying most of the time without my stupid lisp bothering me.

I even tried some methods but it isn't really working and it just makes my tongue and mouth uncomfortable☹️

I don't have money for speech therapy.

(Kindly remove this post if it's not allowed)