Any hairdressers here??

I have like naturally strawberry blonde hair and I usually go to the salon to get it highlighted blonde. I just had my second child and am exclusively breastfeeding and he won't take a bottle so I can't do anything.. I'm desperate to have my light blonde hair back. I feel like crap and I know it would make me feel better. Question is.. what if I buy some boxed hair dye. I've tried before and my hair went bright orange. But what if I dye it twice?? I would wait a few days in-between to help prevent damage. But if I dye it a second time a few days later would it give me that nice ash blonde I'm looking for? I know it will damage my hair but I'm more concerned with the color.