Changing kanton as a 18 years old

Good morning,

I am 17 years old going for 18 in april, i would like to move to bern from lugano to learn the language for one year and then start an apprenticeship.

I would like to know What’s the best type of job can i Apply to, because I don’t know much of german but I know italian and english.

Plus, has anyone of you know if life is expensive or if I can survive with a small appartment