And any other attitude, you'd be truly hopeless. I knew plenty of second career people in my class (as in, the average age of my class at P1 was 35, with me as the youngest and a 52 yo (who is still practicing and more than made her money back at 69). Just take the 15 year chain run as a good thing, because it was, and act as this is a completely new career where you're going to have to go in the hard way (experience counts against you more than it does for you and certainly do not expect your payday to be in the same category as your retail/specialty pay). Again, there are rare exceptions if you want to go to some very undesirable area or you just happen to have some necessary quality that the pharmacy just needs, but otherwise, it won't be that sort of matter.
Look at the positives, you aren't any of those future debt slaves in pharmacy school right now paying an order of magnitude more than we did, and we got the work we wanted and the money we needed when we had the energy to do so. I think by working institutional, I have lost out on about $650k worth of straight salary difference over 15 years (probably more) between retail and hospital practice that I had to make up otherwise. On the other hand, I've had interesting work, and I have a cushy job that puts me in a place where killing as many people as I do through my job is a statistic, not malpractice, and I can take an pension at $58k if I so want to retire immediately today, and $92k/year if I stick it out until 57 for my efforts toward national order and world peace. For that, I'm grateful that I went the institutional pharmacy route.