Css learning

After hours of learning css, ended up making a decent layout but took me way to much effort due those filthy guides. Ffs they all were like, this is how you do a layout, now here its the easiest way. BUT WAIT, welcome to responsive. I was relieved with such new thing but then. I had to delete everything because it wasnt compatible, then they told me to merge it with flex and i was like. WHAT THE FUCK. im never doing a progress in my css html javascript learning with those guides.