@dxs206 don't quit, I had trouble at the start too, I was in my late 20s and had skied behind an underpowered outboard my whole life with combos and I'd just drop one. I wanted to ski in the course so I got the right set up and got some lessons... Alot of lessons... Lake skiing habits die hard as I had learned.
I run a releaseable front and an RTP now but was running an lace up front and RTP when I was learning. I find it way easier to get up with one foot out. If you're left foot forward allow the ski to kind of tilt a bit to the left, it will increase the pull against the boat and give you more lift, the opposite if you are RFF.
Keep your leading knee in tight to your chest and keep your arms straight, you're not trying to pull yourself up you're trying to rise up with the ski.
The other thing is when you're learning to get up if you have a wakeboard tower or a high pylon for wakeboarding, attach the rope to that at the start and have it ahorter, it's much easier than having it at the normal pylon height. If you don't, then all you can do is shorten the rope and that alone will make it way easier until you get the muscle memory down.
I'm sure if you took a lesson you'd get it really quick, once you learn the fundamentals it's really not that hard. You just can't get in your own head.
I started getting really into slalom later in life than most as well and frustration is the name of the game, but you have to just stay positive and not let it overtake you and believe me it's worth it!
Good luck