Sounds to me like you're all set for awhile. Teles are the "meat & potatoes" of electric guitars--everything you really need and nothing superfluous. If you find you really enjoy playing guitar and progressing with your skills, then additional guitars (and amps, and pedals, and....) will come in time. The Katana 50 is an excellent amp to pair with it, too. So stop second guessing yourself and enjoy what sounds like a great rig!