New Blog Layout….maybe!!??

I’m really wanting a new blog layout, something more professional per say! My question is, where do I even begin? I’ve used simple cut and paste “code” ones before and I can easily understand those. But getting into more in depth ones….that is where I get completely confused. Anyone have any input out there in blogger-world? :). Keep in mind, I’m not super computer savvy with codes and whatnot. Thanks for any input you have!! :). Have a great Sunday!