I think If you have access to adobe suit you probably have photoshop It’s enough for a start :)
dig youtube and site for tutorial and star drawing…. a lot!
I start drawing for “real” in 2008, before I was doodling in a back of my notebook and stuff. I’m self thought artist all the stuff I learn from Internet and the hard way :P
the key is to balance between sketches finished illustration studies and stuff from imagination.
You can make something like I did quite while. 30 days of landscapes. first you make a study from photo, then you close everything and try to make new image with similar mood color, pallet and topic. This way you will test yourself, how much you remember/understand from doing studies. no mindless copying. It’s time consuming but pays more in long run. you should see different after 8/10 days of doing this with speed and accuracy.