I built my own PC for my 11th birthday in 2021, and have been upgrading it ever since. Below is a list of the specs, and the upgrades I've done over the years.

Current Specs:
CPU: Intel Core i5-11600KF
GPU: NVIDIA GeForce RTX 2070 Super
RAM: 32GB DDR4 @ 2933MT/s (2x8GB Corsair Vengeance RGB Pro SL 3200MT/s + 1x16GB Corsair Vengeance LPX 3000MT/s)
Storage: 1TB Crucial P3 Plus NVMe SSD + 500GB Crucial P2 NVMe SSD
Motherboard: ASUS TUF Z590-PLUS
Power Supply: ADX Gaming 750W 80+ Gold
Case: Lian Li O11 Air Mini
Cooler: Vetroo V5