If you are needing extra cash, I highly recommend doing some Clickworkers, and or OneForma. Both of the platforms are the same the only difference is Clickworker takes 7-30 days to pay out and OneForma does not. OneForma also gives you training and Certifications way before you jump into the jobs to make sure you can do them. I highly recommend doing these on your free time because it actually helps in the long run and with it being almost Summer this will allow you to pay for Vacations and other things you may need.
If you do not know, both platforms are Microtasks that allows you to train AI, code, data entry and annotations, audio annotations, transcribe and translate in different languages, categorize, and so much more. These are easy and simple to do and they walk you through it.
Oneforma also allows you to get certified in it by reading about it and then taking the exam at the end. Some of the Exams give you multiple attempts so if you mess up and do not score at least an 80 on it, its not the end of the world unless you can only take it once and then you cannot take it again. Both of these are free and worth it!