Help me get my hair healthy

Marisella

Okay so my hair is DEAD and I honestly I love dying my hair so I don't expect it to be all healthy but the last time I went to dye my hair apparently it was so bad they wouldn't even dye it. The lady said to get it more healthy and then to come back and she'll dye it. How do I get my hair atleast a little more healthy without having to cut all of it off😭