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Sounds like a hardtail. But your pressure is quite high. Hardtails are work to ride and need to be moved. You cannot get away with being a passenger like you can on a hardtail.
I'm 74 kg and run 20/22 f/r on my hardtail. But I doubt you'll eliminate the feeling you're having totally with just pressure. I do now run inserts (cush core xc) always and slightly more pressure than I use to, but if you've alu rims the worst will be a puncture not a cracked rim.
Maybe get some light inserts and drop the pressure a bit? What sort of fork is it? My Sid ultimate runs at stupid low basically and I still don't seem to bottom out.