Next time, don't hesitate to ask or watch tutorials on YouTube, so this incident won't happen again

Previously, I was allowed to ask questions and seek information here, so I just withdrew my BTC to FBS with the plan to trade even though the amount is just a small portion, but for me as a student, it is quite a lot. Please, if anyone knows a solution to where my money went, why it could be lost even though the proof of success is already there, please provide a solution or input. Thank you.