I Would say it's a Huge step for your work, Will help u a ton for sure, i donno any recommendations -sorry- cuz am not experienced with em, but most of the HQ Graphic Designers use it.
About geting money fast, the only way i can see is by Earning them by selling Graphic designs of ur own, a shop or something will do the work, u may wanna get some tips from those Experienced Graphic Designers around here in NBB,
Would recommend you a wacom tablet, there are various tablets that are great for starters, also with your budget, bought mine like 1-2 years ago for 60$ and I'm still very satisfied, just thinking to upgrade to a tablet with a display touch screen which I wouldn't recommend for the start as they go around for like 100-300$.
But ye, just look around on wacoms website or on amazon/ebay.
I'd recommend a Wacom tablet. I have many friends that use them and when I was into graphic design I considered getting one but didn't because I wasn't THAT serious into gfx. I didn't need to draw and my drawing ability is atrocious too.