Replying to Help! Wax Advice

Okay ya, Im retarted no need to rub it in. Normally I just get my friends to do it for me because Im lazy. But I just waxed my skis for the first time. Unfortunatly the wax I used was yellow (I thought it would be all good because it was perfect for the conditions i would be skiing in) But yea, yellow wax on the white bases of my head mad trix. Yea so right now the bottoms of my skis look like theyve been pissed on. How do I get my skis back to normal color? Would I just need to re-wax them with a white wax? hahaah thanks for your help guys. (serves me right for being a lazy ass)