Go to Sally’s don’t get box dyes. If you aren’t going lighter. I like clairol professional line at Sally’s the semi permanent my hair always ends up super shiny and healthy looking after. It only lasts about 4-6 weeks but it’s cheaper than having g someone do it and I don’t get that bad root line as it grows out and less damage on my hair. I also do my own highlights Jessie James dekker has a YouTube video on how to bayalage your hair. I’ve done that w slight variations from other videos on YouTube. I bought a big container of ion bleach/lightening powder for highlights and mix with a 20 developer I don’t go over 20 for at home. But I’ve also cut, dyed and highlighted friends, family and my own hair since 14.