I work as an artist and stretch my boards like so...Soak 140lbs paper in cold water in the bath for just a few minutes so that the paper size stays put,but the paper relaxes.I let it drip off quickly and get it straight onto a board where I apply the gummed paper strips (don,t wet the gummed paper too much,I quickly skim down it with damp sponge).I then quickly staple around the board where the paper edge and gum strip overlap.I dry the paper off with a hot hair dryer, the hills and hollows disappear in front of your eyes,and the paper is ready for work
I use acrylics like water colour and often as a colour wash over a pencil drawing.
Acrylics can be very delicate,and unlike water colour,they are fixed when dry and details can be added on top,unlike water colour which lifts from the paper if re-wetted.
If I run a class,I start people on washy acrylics as I think it is much easier to use.
A bonus....if you do a water colour painting using acrylics and your lovely painting still cockles,you can take it off the board,pop it back in the bath and re-stretch it without losing your work.
The most important thing about painting and drawing,is that you enjoy doing it.
For denser use of acrylic paint I use 250/300 lbs paper,unstretched.