Not surprising that you are "stuck" exactly where I was when learning "conventional" gear methods in a Champ... the dreaded wheel landing, which is required in the syllabus but actually not often used by old hands, even in x-winds.
3-pointers seem just like with a nosewheel after you do a couple, but it's a big deal to shove the stick forward after you touch down... gotta break that trike conditioning.
You'll get over it- first good one you do solo, you'll wonder what you were so nervous about.
I'm sure you're not fishing for more Champ advice, but here's more...

If you bounce, wheel or 3-pointer, unless you have a really long runway to work with, go around! It's just not worth it. But if you have over 5000 feet or so, just get that power in, let it get just out of ground effect, and try again. Take your time. You cannot rush a Champ, that seems to be one of the few things that will piss it off.

Unless you're tying it down, park it with the nose into the wind! I almost lost a Champ- and the prop on an idling Bonanza- first time I parked it at the pump at a new airport.
Wind swung the tail as soon as my back was turned... I think I covered 20 feet with a single bound to grab that tail!

Have fun!! i wish I had regular access to a Champ these days... sigh...