Wisdom on growing out bleached hair?

Hi all! I’ve been bleaching my hair platinum for 3 years, and 4 months ago decided to quit because I’m sick of the damage and want to grow it loooong. I’ve toned it down to a more golden tone now and smudged in the roots a bit. The bleached part is dryer and quite porous, but overall the condition is not bad. Any tips on growing this out? Has anyone had this experience? And does it look like it needs a trim yet? Thank you!