I share your concern, as I usually do the same (i.e. worry of making things worse).
However, what I've learned with help from people here on the forum is that, sometimes, you just need to take the risk.
As they say "no risk, no reward".
Also, for me, not taking risks can impede my learning.
Just food for thought...
And good luck, in case you decide to go ahead with the cleaning.
