Blast/cruise at your age is not a good idea regardless whether you want to compete or not.
It is just not necessary and will increase your likelihood of side effects.
I competed in the nationals twice and never did any blast/cruise type of program.
A good 12 week cycle of test every 6 months is more than enough to help you build quality muscle provided you are totally committed to your diet and training.
Thanks man
This is what I needed to hear
Just hate coming off ya know