I second that. YOU are the most important person, YOUR opinion is the most important, and YOUR encouragement is the most beneficial.

No matter what anyone says, as long as you believe that, they will never, ever take it away from you or make you believe otherwise.

More advice for you, dear Kulli.
I's had a random encounter with one of Raver's dear friends, one we call "Meat Geek", a self-describe nerd who is also an avid powerlifter. When I's mentioned that I's knew a person who was looking to become a powerlifter such as he, he recommended that you apprentice yourself to an established powerlifter who is willing to train (but ensure that they are willing and are a good person to train under) and help you through your course.
He also suggested getting in contact with your local or national powerlifting organsiation/federation to see if they know of any acredited instructors, trainers and/or gyms in your local area. Since you are in England, best to try and find the United Kingdom Powerlifters Federation (if they are still around).
Best of luck to ye.
Peace
The Pimp NeonBlack

There are more than you'd think. Just hit the gym, maybe get a trainer for the first couple sessions.

By the way, if you feel anxeity about other weightlifters deriding you or something, I can assure you that such is unfounded.  I suspect that I am the weakest patron of my gym, but everybody is too preoccupied by his or her weights to notice, let alone note the asthenia of those around them.