i started a welding course & learnt the basics but got bored & quit. then i just started practising on cars. just trial & error. welding is pretty easy but the grinding that goes with it sucks. boring & dirty . if your welding anything structural make sure you got plenty of heat/penitration. if your welding arches etc then as little heat as possible to try avoid distortion.
just a case of practice practice practice get some pics up & im sure people will tell you how your doing