New and Confused
 

Just got into RC and I have an S912 Luctan. I am trying to practice with this little thing before I step off and fully lock myself into this hobby. I ended up cracking a wheel and was about to order some new ones, only to discover that it was much broader than I had imagined it would be. Any suggestions because I am quite overwhelmed with results I have seen. Any help is appreciated.

Also, since I am new I would appreciate input on future upgrades, RCs, and general tips you would have liked to know when you first started the hobby. Again, I appreciate the help.