Are you properly positioned on your saddle? There must be a baseline to start from otherwise you are going to be chasing problems forever and never or seldom finding relief.
As a "new rider" discomfort comes from a variety of areas. It takes time, one you are properly positioned on your bike, for the body and mind to acclimate to the pressure and stress levels on varied parts of the body...the "pivot" points are the most common complaint areas...ie, butt, hands including arms, shoulders, neck, etc and often the feet.
It also strikes my you are overthinking the situation...stop buying stuff to remedy discomfort...create a baseline by a proper fitting and adjustment of your bike...use reasonably good quality parts...saddle, gloves, etc. but don't go crazy overboard...begin and stick with a daily stretching regimen to begin limbering your body...learn to change your position on the bike more often but not until you are properly fitted...Stick to basics describing a problem, I'm not a medical person so stick to basic descriptions...numb nutz, hands, etc.
I'm also curious as to the bike you are riding...cheap brake levers and unpadded hoods?...hoods generally aren't padded, merely a rubber sleeve of some sort...the shape of brake levers are fairly the same across the board though shapes may vary somewhat...handle bar tape provides minimal comfort in general and is really more for grip and sweat absorbtion...get tape is ok but again doesn't really do tons but double wrapping your bars may help. I double wrap one set of bars on my cross bike as the bars "feel" a bit less in the diameter area than my normal road bike bars but it could just be me...I like the feel of the double wrap on my cross bike but have no need on my road bike bars.
To sum it up...position, position, position...unless you are starting from a good position and adjusted bike it will be nearly impossible to do more than put bandaids on the problem.
You can do it yourself...kinda sorta better than nothing...you can find methods by doing a Google search and/or Youtube search and do it yourself with some help from a friend, etc.
Take some time to allow your body and mind to begin to adjust to the position. Don't make "minor" adjustments for several weeks and when/if do it incrementally meaning a millimeter or two/three rather than a centimeter...
Don't worry about saddle changes until the above is complete...we all have the "box o saddles" hundreds of dollars of saddles we no longer use...don't be one of us.
Good luck and keep us informed.