Welcome to the wonderful world of OCDO. (OK, belatedly, Welcome.)
Getting "comfortable" OCing took about a week. I needed to get used to the redistribution of weight and how my body leaned this or that way as I moved to compensate for the mass hanging off my belt. It also took a bit of time to get used to moving through space - adding an extra couple of inches to the amount of room needed to clear tight areas or not bump into people in crowds.
Then we get to the fun part - getting used to dealing with how other people react to me OCing. That took some time. Not so much because I got a lot of negative feedback, but because I started out a bit too far over into paranoia about other people getting too close to my handgun side. I wasn't so much worried about possible gun grabs - although that did enter my mind - as I was about having to draw while being crowded in on my someone. I got over that with practice and training which included just walking about in "normal" crowds (doing my grocery shoppping, getting coffee, wandering the malls) and mentally imaging draws.
As for the safety of your gun vis-a-vis other people (your daughter, for example). If yu keep your booger hook off the bang switch, and everybody else's too, there should be no problem. Modern handguns do not go off by themselves unless there is a rare manufacturing defect of you have Bubba'd it. Yes, a lot of folks get all in a snit about horizontal holsters because the muzzle is pointing at someone. My opinion is that as long as the holster retains the handgun securely and covers the trigger there is nothing to get worked up about. YMMV considerably.
In closing, JMB (pbohn) designed the 1911 to be carried in condition 1 (round chambered), cocked & locked with the safety engaged. Generations have followed his wisdom with nary a mishap. Save yourself some embarassment at Starbucks (you were goping to ask the other OC-ers and not the barista, right?) and just ask them to explain the various safties on a 1911.