No I am scared for you because you seem to naively believe that while there are so many people who budgeted yet ended up with lots of debt.
Yup, I can’t speak for the OP but your average 18 year old who shows up and says “I got this under control” is exhibiting hubris. What people here are trying to tell the OP is, have a little bit of humility, learn from the mistakes of others, and proceed slowly, or you might bite off more than you can chew.
IMHO the biggest bump to building credit will be having multiple utilized cards with low utilization and bills paid on time for years. The size of the the CL isn’t important, and the size of the spend is even less important.
If your intent is to build credit, buy a Snapple or metro card on credit, and stay away from buying groups.