Agree about arimidex, thats a strong cancer drug with serious sides and what comes to bloat hey thats not a side effect, actually some fluids in "muscles" does good for growth.
But then again.
I wont judge anyones age but well, don't know how many years you have behind and how are your results, haven't you been able to cut down the bodyfat down before considering cycling. Have you learned how to do that, keep your results or get gains after diet ? Good lessons that one should learn before considering cycling. And well. What comes to myself. Hey my results were stuck for looong time, but well, i learned few lessons of controlling bf and actually got best gains when i was about 20 years old. Trained for strength back then mainly which in backround i found very usefull when switched to bodybuilding style of training. Well i was stuck around 300lbs fex at the infamous benchpress for ages, then boom 380lbs in few months followed by a diet dropping the bf down, after that trained back to old results but this time wasn't gaining hardly any bf at all and decided to make it a time for first mild cycle and switched more and more to bodybuilding side. At that time i had 6.5-7 solid training years behind and knowhow about how my body reacts in natural training meaning that i could connect developement easilly what i had done, eaten, etc. etc. not to a substances taken which masks the formula of growth somehow
Consider, its your choise. Maybe you'll be happier not to use that resource now that you most propably can get higher without. Save the ace i would say with your stats. And when you do, don't go to mainstream, sure take advises, read some, but also read some about those so called "side effect blockers" which tend to cause more sides that usually imaginary sides you are expecting but would never even get.