New journey want opinions

Hello to all bhw family. I am thinking of starting a new journey. So lets stick to the plan. What i am going to do?

I found a small print on demand business in my country.. and i can get a good offer if i buy lets say 100-200 t shirts.. then my plan is to create an e shop .. and go full on facebook , instagram ads.. do you think this is gonna work??
Thanks in advance... I am new member so be kind to me