I called several psych doctors and one of them is an over the phone  psychiatrist. Does anyone have any info/advice for what to expect from this appointment?

Some background on myself: I've been seeing doctors for bpd since I was 16 and am now 26, I did stop seeing doctors for the past few years for psych stuff because of my fear. I've had a fair amount of unpleasant experiences so I'm pretty scared to say the least. 

Any advice or info on what to expect would be greatly appreciated