Great that you're ready to be paid.

If you didn't talk money before you took the job, you pretty much have to take whatever you get, even nothing.

Take what you've created and start a book of your projects. If you are going to start a part-time business, do so.

Then tell your mother and anyone else that you've done free work for that you're in business and would appreciate them sending you referrals.

I don't know what you did, but the lowest fee I've seen for graphics is $60 per hour. Most of my clients charge much more, actually they charge by the project, which is more professional.

I had a client tell me she was getting $75 per hour, but by the time I went through my list of all that goes into pricing, it was more like $10 or $15.

Do the research that's necessary to find your prices.