My first ever bloom on my Meyer lemon!! I just had to share the excitement!!

Hi everyone, my name is Courtney and I am completely new to all of this. I just got a Meyer lemon tree for mothers day and am wanting to make sure it thrives. its a 1-2 year old tree ordered from lemoncitrustrees.com. I repotted it after two weeks because the pot it came in was so tall and thin there was no way to keep it from constantly falling over. Its in miracle grow all purpose garden soil. I had heard good things about it. I drilled extra holes in the bottom of the plastic pot its in. its on a stand and now out on the front patio getting morning sun/late afternoon shade. seems to be green and doing well. I am needing info on fertilizer recommendations and frequency, what pH the soil should be at and how to change the PH. I have heard about adding epsom salt? or coffee grounds to the soil occasionally so I would like more info on that and why etc. Any tips/tricks to keep this Meyer lemon growing and thriving would be appreciated. thanks!