You can use your time to learn about Bitcoin now and prepare for your investment plan later after graduation.

Investment does not require you many time like trading, but you need kind of time for it like wallet setup, backup, recovery and test your backup usability after a while. You don't need to spend much time for reading news like traders, it's advantage of investment.

You have to store your bitcoin in non custodial wallets, open source wallets, because storing it on centralized platforms and in custodial wallets is a very risky practice.

Reminder: do not keep your money in online accounts
Bitcoin information and resources.
Not your keys, not your coins.
The paranoid user's security guide for using Electrum safely.