Self bows and wood-wood laminate bows can be very disheartening. I know -- been there, got the tee shirt!
A wood-glass laminate, made with a simple, inexpensive form (not an air hose form) without a heat box (not needed if you are patient), can be a very rewarding build.
Here's a 56" 50# "bendy-handle" flatbow that I made last year that costs about $50 for materials. The nice, straight, flat, 2x2 next to the bow is the "form" that I built the bow on.
$18 pint Smooth On Epoxy kit
$19 two black glass laminations 72" x 1.5" x .030
I used clear glass because I happened to have two strips. Black is cheaper.
For a simple bow you don't need fancy woods. If you can get a Red Elm or Maple or Oak or even knotless Pine board 1.5" wide and 5 ft long, cut two 1.5" x 1/8" lams 56" long. The bow above has a straight grain pine and a Red Elm lam that I had laying about.
To hold the bow to the "form" I spiral wrapped the glue up with nylon strapping tape. Easy Peasy!