Dont give up on the firewall yet! your almost there. Now with the black on you can clearly see what needs fixing. Just take your time.Touch up the areas you dislike. I feel your doing a very good job
. If you skip it now later on your going to wish you would have finished it when you could have. What i have learned in body work is that you work on one thing at a time. Dont rush. Working on other areas migth become overwelming.