TallTiger:
Do you suggest I pay for some points
No, not yet anyway, I suggest you go through the 'Get Credits' - 'Earn Free Credits' route first. See if you can do the surveys, watch the videos for a few credits a day, see if there is any offers you already do/use and take advantage of them. Try earn as many credits for free first as you may lose interest in the game after a couple of weeks...who knows!
TallTiger:
Again, not yet. Play more ranked rounds and some Alt.shot/Matchplay and get those XP levels up (experience point levels). That way you release the better equipment while also hopefully improving to take advantage of it.
TallTiger:
Do I need to follow wgt's suggestions on what to play?
You don't need to but following there suggestions gets you a few extra XP points which again unlocks equipment.
Only my suggestions, hope they help.
Cheers
P