Loss of color

I was excited as an 18 year old to finally get my hands some Galxboy T-shirts i bought 2 for 1200 But the world peace 3.0 in blue lost color after I wore it a couple of times (2-4) without washing it to retain the quality for longer but it started lossing color and I would iron it on the inside wear it for special occasions and take it off immediately when I got home. I washed it yesterday In hopes it would be better but it remains the same and I think it'll get worse from there. Galxboy is a great brand offering thick material and designs but that World peace 3.0 worth R700 really discouraged me as a yearning supporter. Although the carrot white T-shirt is still good and I washed it 3 times since December. So there's a good side.