So... to the young OP... I'm gonna sound like an old man, well, because I sorta am... but I do have 4 boys so I'm going with my gut here...
Some of the statements here are flat out B/S! And they actually know it.
Right now, you are trying to get your machine to do the work of printing football stickers but when learning software - you are going to be into it for a couple of years on your own. If you are going to spend that kind of time, get some online courses in. I would ask... what are you ultimately going to do with your sign/design thing?
Personally, I told my kids to stay away from signs... a Corel Draw sign shop designer is lucky to get 15 bucks an hour in your parts, hell, they pay that in California. They all know how to use Corel and Adobe by the way.
If you want to just play with the machine, any old vector software will work, you want to possibly do this as a career? Look at what the big boys are using. Then ignore that and learn the process. Software is only a tool until you go apply for a job. When applying for a job, well, want a chump 12 buck an hour job at a shop in BFE? - Corel will work perfectly... you start designing more than signs (hopefully) You might want to look into Adobe CC Suite... Corel will work too, but Adobe CC has a lot more to IF you want to design more than signs, it will work for your needs now and possibly in the near future in whatever direction you go.
By the way. take a look at good work... Joe Diaz of Diaz Sign Art (A Corel Draw user) or go to Kickcharge Creative's website and feast your eyes on their work (Illustrator users) Or some of my graphic designer favorites, Aaron Draplin or Von Glitschka (Illustrator users) - all younger than me by the way... and see that it's the skill and process - not the software...
If all you want to do is print stickers, ignore all that I typed... welcome to the sign business...