Agree with the comments so far on tent size, getting better quality equipment etc.
For the sleeping mat I have a 'self inflating' one. With this you just open a valve and leave it while you get on with other stuff and then close the value up once its expanded. its goes from 1/6" to 1" in thickness and its surprisingly comfortable. You can blow in a bit more air if required but normally don't need to. When its time to pack-up you just open the value and roll it up carefully, letting the air push out through the value. These a couple of advantages. firstly they pack up nice and small. But more importantly they contain a honeycomb foam that expands when the air is let in they have very good insulation factor as you don't have air moving under you - I've camped out in -15C (5F) at the Brass Monkey Rally with one of these and its worked well. The make I've got is Katmandu but I imagine there's similar in the US.
I also carry a small, very heavy duty tarp. Its called a Matador Surface (
https://matadorup.com/products/matador-surface). This is something my wife got for me, I would never have thought of it myself, and its been invaluable. Just chuck it down and you've got a dry place to sit, cook, etc. regardless of how wet/muddy/snowy the ground is. The pocket on it is also more useful than you'd think it will be.
On the stove side I personally like my old Optimus Nova as it packs up small and uses very little petrol to use (can run petrol, lamp oil etc). However that sort of stove is a bit fiddly to use so I can understand why the Jet ones have become popular recently.
I carry the tarp and the stove (plus water, coffee and soup) with me all the time, even if I'm not planning to camp. So in some middle of no where place with a fantastic view I can stop a while in comfort to enjoy it.