Reapplying color as directed?

Hi, your feedback would be appreciated! I'm in a bit of a dilemma. I've done my hair color for many years now. Before I went darker, my hair was a mix of dark blond and light brown with bleaching job. Right now I'm going for a light warm brown (looks like a caramel), which looks great with my skintone. I recently went a little darker with a demi permanent color which ended up like dark brown, almost black (it's supposed to be a medium brown) and didn't like it. So I went with ColorFix to remove the demi color. Now, my hair's much lighter after stripping. Now, I'm a little concerned if I do reapply new color will it become darker because my hair's a little fragile? The new color is about the same level as my hair now but should I leave it on as directed or in half of time just to tone a bit? I got a liquid permanent color by Wella. Just wash in the color without leaving it on too long? Thanks.

^^^I agree, use a lighter shade than you want --- maybe even two shades lighter with a golden or neutral base. I would even spray your hair down till it's damp with a leave-in conditioner to even up your porosity.

That's a really pretty colour! thanks for posting that pic; really helps.