Need help in cycle

Been on 500 test a week for 7 weeks now. Gonna do 15 weeks. Pumps are great. Strength gain is also great. Put on a lot of size. But I don’t want the big monster look. Once I reach 8 weeks on 500 test. Should I add 20mg anavar and continue the 500 test. I want an aesthetic physique. This is my first ever cycle