If nothing happened since last time when you communicate with that person, more likely nothing will happen in the future.
At this moment you have only two options:
1. Freak out and destroy everything you managed to achieve so far in life for nothing, just the fear of what it might happen when there are good chances that nothing will happen.
2. Face the reality. Yes, you have done a mistake. So what? We all do mistakes sooner or later in life, in a way or another. No matter how worse the things might be, the ones knowing you will be able to understand and support you in difficult times. The ones jumping to judge you or condemn you for a mistake are sure not the people you need close to you.
At the end of the day, it is your life. How you deal with it makes you who you are. Friends and family are good to have - but most of the times we are solving our problems alone, without any help from no one. If you have the feeling that's too much for you, you might consider the option of professional help. Here, we are dealing with online scams. We are sympathetic, but we are not psychologists. Maybe your actual problem is aggravated by other issues, and a professional would be more than helpful in this case.
Help yourself by helping others - report your scammer here.Google can be your best friend
;use it if you have doubts about someone met online. If someone met online only asks for money, no matter what reason, it´s 100% scam.