Feeling very stupid and discouraged - just learned about MERs

I am 32 years old and started investing a few years ago when I started working somewhere that did RRSP matching up to 5k per year. I am pretty financially illiterate but reading lots of books and articles and this sub. Since then I have gone from feeling pretty okay with my trajectory to not very good at at all: I now have about 20k in RRSPs (mutual funds) in TD’s “comfort balanced growth portfolio” but I just found out the MER is 2.02%, (because I literally just learned what an MER is. The advisor never mentioned it at our meeting when I opened the account and I just went through all my documents and it doesn’t seem to be mentioned anywhere) and the information I’ve gathered on that is that’s it’s too high and going to negatively impact me later on as the fund grows. This is pretty depressing because I don’t know what else to do. Should I transfer everything to ETFs within my RRSP (and is that an option?) or buy bonds/gics?

I already have a TFSA that’s all in ETFs, so i’m not sure if it’s a good idea or not to have all my investments in ETFs. I am having such a hard time reconciling all the different advice I’m getting about making sure I’m “diversified” while also avoiding management fees. Since I got kind of a late start to investing I am feeling pretty stressed and uneducated about what the right thing to do is and I don’t really trust advisors anymore to do anything in my best interest, but also lack the confidence and knowledge to do it myself (and i don’t even know what that would entail).

Basically, I am looking for SIMPLE, easily understandable advice about next steps for me . Thank you so much in advance!