The Quest to Kick Dry Hair to the Curb!

Good evening! So I'm going to get right to it: I have extremely DRY hair. Like super Sahara Desert dry hair. Since I started the journey to natural hair (I'm 4 months no relaxer, so proud of myself) I am noticing that my natural hair that is coming in is feeling extremely crunchy and brittle. So not a good look. When I was relaxed I had pretty dry hair so I can only imagine what lies ahead once the relaxed hair is completely gone. I'm currently rocking a sew in weave as a transitioning style, observe exhibit A:

Lmao please excuse the goofball face. I'm wearing a completely closed in sew in with a net underneath. The very back of my hair is left out which happens to be all new growth. My last relaxed do was a short asymetrical cut where the back was completely shaved down, hence why this part was left out. I've been very diligent about taking care of my hair underneath the weave. I'm been shampooing and conditioning 1x a week to maintain the freshness of the weave and have been moisturizing my hair underneath with a concotion of Shea Moisture Restorative conditioner, extra virgin olive oil mixed with African pride braid spray.