You cannot do any flying for hire or compensation without having a commercial pilots license (need to be age 18) and meeting certain other requirements depending on the type of flying.

The word "compensation" is critical here, since the FAA can and will consider flight time itself to be a form of compensation for low-time pilots who are building time and you can be violated for doing flying where it even appears that you were flying for free in exchange for flight time.

Also most commercial type operations will have insurance requirements which you won't meet.

The best way to get free flight time in your position is to borrow a friend's airplane, or find someone with an airplane to go flying with who will let you fly and log it.