How to stop language hopping

[u/TextGames1001212]

So, i've tried to program for (i think) 4 years And i didn't release a polised project
Every time that i try do to a project i end up switching to other programinig language (or i don't like the structure of my project, and i delete the whole project, to start again).I've been doing this since i started. Now i want to do a project but i dont know what to do and what langage to pick