I started MTX using the injections because I'm already susceptible to GI distress. My rheumatologist had me start at a lower dose and gradually increase to the full 0.8mL dose. I've been at that level for two weeks now and I can already feel a huge difference. Energy is back, sleep is better, etc. Given all the progress, my rheumatologist agrees I can speed up the pred taper too see how it goes.
I've also incorporated a lot of anti-inflammatory foods like berries, green tea, moringa powder, etc. and am avoiding foods that make it worse.
Good luck with your own experiments!