I haven’t tried Deca or Zoloft, but from what I hear Deca gives you deca deck (limp deck) and some people lose their sex drive with Zoloft.
Zoloft is a closed relative to Prozac. I use to use Prozac and had what’s called “Prozac Burn out” for some people after a year or two the drug stops working. I am now on WELLBUTRIN XL and it works great and doesn’t affect your sex drive, in fact it helps. Talk to your Dr. about it