I felt , and still feel, the same about illustrator. Keep plugging at it. It was a lot easier picking this stuff up when I was younger. Now, I just have short periods of time at the end of the day, for the most part, to invest in it. But after a yearish of working on it, I getting proficient though not yet as efficient. I don't think the what seems to be adult onset ADD has helped. (Should probably go get that figured out)
I decided to stick to honing my etching abilities so only working in black and white. I think that has helped me get processed down since I'm don't distracted by color matching and whatnot.
I would say, once you have it down enough, if it were me, is skip waterslide or just use it enough to prove to yourself that your layouts are correct. The Tayda side really isn't that bad. Especially if you can set your coordinates in inkscape to match the drill tool(no idea, it can be done in illustrator). Then it's just making sure you have all the correct options in your cart. It's a huge time saver over drilling, clear coating etc.