1. Post link(s) to previous translation(s).
2. Offer, for a start, your services for free, especially for Announcements. It will rise your experience (crypto translations have their own terminology you have to master) and will increase your visible portfolio.
Just double check and avoid as possible the scams, because you may get associated with them. (Also always write that you are only the translator and people should use their own vigilance).
3. Add your name into translator lists (after you'll have a portfolio).
4. Bump (withing the rules!) your topic now and then to gain visibility. Again, after you have a portfolio...
From what I know there are at least 6 other Turkish translators on the forum, hence you'll have to be better and cheaper than the competition. Good luck!