Coding

I am extremely nervous about marking up a website for a class assignment. I get really bad anxiety attacks whenever I am in the process of developing a website. I am still very new at this so I panic when I get in a bind and cann't quite figure out why my coding is not being responsive. I am usually good at troubleshooting but it ends up eating alot of my time. I gues its the best way to learn through trial and error an tons of practice! practice ! practice!