When I got made redundant 3 years ago I was extremely worried about any potential job interviews, having not had one for nearly 20 years so was not exactly well practiced.
I ended up having 4 in a few short weeks, got offered 3 of the 4 jobs, only 1 I was unsuccessful in ( but got offered that job too a few weeks later)
All I did was turn up on time, look relatively smart, and answer all their questions honestly.
No idea how I did it as I was very nervous, but if I can do it then so can you, think positive