investing in crypto is not as easy as you think, crypto has a very high risk, therefore you have to rethink your desires, or learn in more detail about how crypto is doing, especially like you said you are a students who want to help your parents to pay for your school fees, if you want to find additional income in a short time it's best to find another business, because crypto is not to give an instant profit to you, moreover the crypto market is going through a correction like now, but if you are very sure that you want to invest in crypto, I suggest buying polygon matic, because this coin has very good potential and prospects, besides that the price is still very affordable.