Your Palm looks to be a Majesty Palm and that is not good news. That is a Palm species that simply does not do well indoors under any circumstances. Yours seems to be doing what they all do when kept inside. I don't think there is much point trying to diagnose or remedy the problem, I am sorry to say.
Likewise, your Cucumber does not look like it is worth saving and it may be a source of pest problems.
I don't see anything in your photos that look at all like a Dracaena or a Yucca.
