How many allowances/dependents can I claim?

I have 2 jobs, am a full-time student, and live alone with my child. I provide the most for her, so I claim her.  I don't know if I calculated how many I can claim correctly. So far I have:

1- For me

1- For her

1- Head of Household


So 3 total. Can I claim 1 at one job and 2 at another? Or all or nothing? Do I even qualify to have 3? Also, Idk if this matters but I rent an apartment.