There are some things I'll spot to increase numbers done in a short span of time to help someone get that the skill isn't such a big deal, and then there are things to spot as kids move from one step of a progression to the next, including the final version as it's done in competition. I won't allow a child the chance to go on their own without some safety measure in place, until I'm certain the risk to them is very minimal..... like in the sense that accidents can happen no matter how well you've learned the skill.
One thing that helps me decide who is, and isn't, ready is the reaction I get when I ask...."So do you think your ready?" I'll ask that question out of the blue, way before the kid is ready to do the skill on their own, just to see if they have the common sense to say no. The kids that say yes are the ones I really have to slow down because they think they can do crazy stuff when they can't. The ones that tell me they aren't ready will also let me know when they are, and I usually agree with them.
I'd say you should ask your coaches if they feel you have a firm understanding of your abilities and state of preparation, as well as your awareness of the risks you may be taking. Maybe there are skills they'll say you're ready to do as long as you agree with them and understand the risks of each skill. Maybe you can make some progress on this by having that conversation, or......
You may have to listen to them telling you that the holding you are feeling is not to keep you from doing the skill more freely, but that the holding you feel is from getting a little lift to get you through the skill..... You gotta admit, it may not be the first time they were right, and you were wrong. But hey, don't get me wrong..... I really admire the spirit behind what you want to do.