My Frist 80$ in BTC

Sorry for my Bad english ! i will invest my frist 80$ into 80$ Now ! and i im worried shloud i enter now ? i will keep puting small amounts every Week such as 60 or 80$ is it worth it for the long im 23 Now and i got a side Hustle and studying Law . i went to be at the age of 27 fiancilly free is ! so i will put 40% of my weekly income in BTC like 60$ or 80$ like i said . i will sell at the age of 27 is it worth . what do u think about this move im new here i hope im on the rigth Sub