sadly,you will have to cut all the dead parts off..there’s no way to get around it :/ trust me.things can do good for your hair temporarily,but the damage will still be there unless you cut it off..then deep condition it all the time.literally ALL the time.only wash your hair 2–3 times a week.and condition/deep condition it every day or every couple days.eat healthy,take vitamins,i take ones with folic acid,biotin,etc.in them(: don’t dye it anymore or wear extensions anymore,and look up ways to style your hair heat free.I cut my hair off a year ago from damage and wanted to grow it out,well,lol,I messed it up again,because I got bored and bleached my entire hair then dyed it red .xD,but,I cut it again.Get a keratin treatment,if your hair is frizzy/curly and you usually straighten it,a keratin treatment will last for months and keep your hair smooth and healthy so you don’t have to use heat(: also do mayonnaise,avocado and honey,hot oil(coconut,olive oil) treatments every week at least.and even better,morrocan and argan oil if you can afford them(: and get your hair trimmed and shaped ever 2–3 months.only ¼ in.so you can get rid of all split ends,and also,when hair is growing from so short,and growing out long so fast,it looks weird,it will look too long and too short,etc in some areas,like a mullet,lol,so that’s also why you trim and shape it.(: also try to use organic shampoo.it won’t have alcohol,and sulfates,and all that other crap that dries your hair up.and even though people say it’s ok to use heat tools as long as you use heat protectant,just don’t.lol.it will still get damaged,dry,split,and break off either way.only use hot tools a couple times a month,if you can go that long.but I’m sure you can(: there are plenty of super cute ways to style short hair without heat.and get a short haircut for your face shape.and to look more girly,dress more feminine and do your makeup to enhance your girly and most gorgeous features(: and when you don’t want your hair down,try to clip it/pin it up instead of tying it,hair ties reallllyyyy break your hair off..That’s really all I can think of.lol.good luck,even though this is late,haha.this information can always be useful to anyone(: