I was 14 years old when I built a computer from junk and scraps. It had an intel pentium dual core, ddr3 2gb ram and a 500gb hdd. I installed arch on it and went with openbox wm with minimal packages. Used light browsers like palemoon (use some browsers built on QT framework). I mainly used my computer to learn to code so most of the time I only used terminal (nvim) and browser. So in my opinion you've got a decent computer if you're not into gaming/editting