Lacefronts are great protective styles .. Still looking fabulous while fully protecting your hair and growing it out underneath.
I'm curious .. What shampoo and conditioner do you use?
I'd recommend moisturizing your hair with a water-based moisturizer and sealing with oil between applications of your lacefront .. Be careful with the tape/glue since you're trying to grow your edges back ..
Give it time, have patience - you'll get there! Remember hair grows on average .5in per month. For the five month time frame you've given since you cut all your hair off, the 2 inches of growth you've gotten seems to be right on target.
If you want to see results a little quicker, there are lots of growth aids out there to experiment with. Aside from that,... drink water, eat well, & consider a multivitamin for overall health. Scalp massages are our friends!