Welcome to the community! 
So yes, the TRX would be a very excellent choice to really maximize your results. It is $150 up front, however the investment more than pays off after a while and then some, allowing you to do things machines could even dream of accomplishing...
And working out is definitely fun learning new exercises, and being able to do them from the beginning is exciting.
It will definitely be worth your while to invest in the TRX 
Thanks,
Justin