Personal trainer experiences? Is it worth it?

Hey guys. I'm 17, 5'2 and weigh 140lbs. I really want to lose around 30 pounds. My local gym has personal trainers for $30 per session and I meeting with one tomorrow. Do you think I'll be successful? And I have a job but really don't make much, so could I just do a few sessions and be good? Or what? Thanks in advance
Personal trainer experiences? Is it worth it?
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