you should probably consider running less deca than test. but do some more research
also you may want to do some research on cabergoline (dostinex) and Bromocriptine for preventing deca related gyno. Also may want to have some letrozol on hand (bare minimum) just in case you do get gyno.
also.... adex to keep the oest down
If you do get any bad sides you will not know what caused them as you have not used test or deca before and do not know how your body reacts to the different compounds.
imo replace the prop with test e or test cyp.... if this is your first cycle it will be easier for you to pin yourself once or twice a week than eod (unless you love stabbing yaself. lol)
I'm no expert but you should probably want to think about dropping the winny altogether this time as has already been suggested.
it would be a smart move to get some blood work done beforehand to make sure you r fighting fit.