Help upgrading prebuilt

I bought a prebuilt a few years ago on a black friday sale (my first PC ever-was $450 i think). Have loved it, been able to run Battlefield, Destiny etc on high settings >100fps. Im considering upgrading to get up to 144 htz and ultra but know very little about actually building PCs/upgrading hardware. Any (I mean ANY) opinions/advice would be awesome. Specs below:

HP 580-023w, i5-7400, 1060 3GB, 8GB RAM, 1 TB HDD, Unsure of motherboard or powersupply.

Link: https://www.walmart.com/ip/HP-Pavilion-Power-580-023w-Gaming-Tower-Intel-Core-i5-7400-NVIDIA-GTX-1060-3GB-Graphics-8-GB-Memory-1TB-Hard-Drive-Windows-10/803136621?wmlspartner=wlpa&selectedSellerId=100001411&adid=22222222227000000000&wl0=&wl1=g&wl2=c&wl3=42423897272&wl4=pla-51320962143&wl5=9052547&wl6=&wl7=&wl8=&wl9=pla&wl10=125198217&wl11=online&wl12=803136621&veh=sem&gclid=EAIaIQobChMI7tTY2pit5QIVQtyGCh2ECQiIEAYYASABEgKXxfD_BwE

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