Fixing errors in my blog

I tried the google webmasters tool to check my other 'Paintings by Lena' blog for errors. There were so many errors and I tried to find a solution but wasn't successful and the only way I could think of fixing all the errors was to go back to my first blog and start fresh from there. If there are no errors, then I will continue using this blog from now on. I'm crossing my fingers that I will be error free from now on in.