Just confused

Hi I am fairly new to using high quality audio equipment.  I have assembled all of the gear I want for listening/enjoying the music.  Of course it’s only a matter of time before you ask yourself “What if?”.  I understand that room acoustics matter so I am off trying to implement acoustic panels - some good relatively consistent advice here.  What I struggle with is the subject of vibration control/isolation ... the advice from the community is not very consistent.  The floor in my listening room is slab cement with ceramic tiles on top.  I have Avant-garde Uno speakers (with spikes since that is they way they came), REL subs (rubber feet) and effectively an unbranded equipment rack (with spikes).  Are spikes what I should remain with for this kind of surface?  Does it make more sense to decouple the speakers and rack from the floor with some kind of isolation device?  Should I be replacing the current metal spikes with “cones” (or other device).  Should I use the same device for speaker and rack?  I just want to avoid shelling out a bundle of money for something that may turn out being a negative.  Thanks in advance for your patience with my naive questions.
Geoffy, how about them rhodium plated cryogenic banana peels?
Talk to the hand, sleep stalker! 🖐 Did they finally cut you loose from Subway? Is 65 in your moniker your birth year or IQ?
Lol . . You guys are a trip!

I have a concrete slab with foam pad and medium pile carpet over it.  When I got my towers speakers, I tried them with just the tiny rubbery-button feet they came with, but the speakers would be too easy to tip and fall over.  So I put on the spikes and they are more stable now.  

I don’t know a final position for each item yet, so the two subs with rubber feet . . one sits on the carpet, and there isn’t space on the floor for the other sub, so it is sitting on a folded towel (to prevent scratching it) about 16 inches up from the floor on a brick shelf that is part of the fireplace.  

I have no idea what I’m doing but hope to move things around once my roommate leaves (delayed by COVID-19) and I can swap the smaller furniture (in his TV room) into my listening room, which currently has a large sectional taking up a lot of room.  Then I can consider room treatments.  We all got problems.
You're not really confused until you feel like a baby in a topless bar.
Hi.  Good luck!  This is a difficult question.  Unfortunately in this forum every man and his dog has 'expert advice.'  Best wishes from New Zealand.