Firenzo:
What upgrades do you experienced players recommend first? I have already bought the Taylor Made Spider Putter and after 1 round (St. George's) I'm loving it. I'm limited to what I can buy, as I'm just a pensioner and have to get all my equipment from taking surveys.
The first tipp won't cost you a penny:
Exchange all the SWING clubs in your bag by the respective Starters.
The budget way would be to stick with the Starter putter - IMO the best club of this set. O.k. you changed - that's fine, too.
Next proposal would be one (64°) or two (60+64°) of the Ping wedges - the Starter wedges are crap against these.
Budget proposal #4 is the best 3WD you can get as a driver replacement. I fully agree to the former proposal of that double use bargain.
If meter speed is no prob for you, consider the R11 (lvl 30+), the first one with high trajectory. The Raptures are an alternative with slower meter, e.g. lvl 47 @46,000 XPs.
If you pile up enough credits, you may also consider a full set of R11 or Raptures. Good irons will be a pleasure at some point.
Custom balls add to the fun, but they wear and get lost, creating a steady cash flow towards WGT. Consider them once you have settled your needs above.
Though ev1 proposes the expensive ones, also the cheapos will better your game with slower meter speed, a wee bit more spin and higher consistency. I use the WGT-SDs @65 crs per sleeve, though the WGT-S aren't too bad either. Of course Callies and whatnots are better but they quadruple the costs!