I was out of the competitive workplace (had my own business) for about 30 years. When I applied as a Secretary at a financial institution, the adjustment took me about one year and a half. Initially, I felt more confident after about one month, but due to the way I was treated at this workplace, and what I was put through, it was made more difficult. Definitely look for a place (and this is very difficult to determine), where the people appear to be understanding and helpful. Again, this is very hard when you are on the outside looking in. PEOPLE make things difficult for us, and of course, we sometimes are our own worst enemies. Human Beings are the biggest obstacles that human beings face. Sad, but true in many cases.
The combination is not good; but doable. Self-speak works for many people. Being armed with as much information as possible. For me, I have learned that STANDING UP for myself works, communication is key, speak your mind and don't let people use you as a doormat. Some people are on power trips, tell yourself you are above that and act accordingly.