I also have a hard time with ukemi, especially the forward roll. I feel way more comfortable with back rolls or side falls.
You know what fall scares me the most- the high fall!! At my new dojo they all can do high falls; I haven't even attempted one! Should one ask to be taught how to take a high fall or you should wait to be taught it? Sorry for asking a question in your thread J. Aaron; hopefully, you we're thinking of the same thing.
Next time you see someone do a "high fall" don't look at how high their feet are in the air, notice how close their head is to the ground.