I need help losing weight safely and finally.

im 16. used to be 215 now I'm 180. I went to a trainer and knocked off 30lbs in like 4 months. I don't care how long it takes but we can't afford the trainer any more so I need tips on losing the rest of the weight. I want to go from 180 to 130-135.
I need help losing weight safely and finally.
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