First off: congrats, a new record is a new record. On the powerlifting board 16-year olds are posting videos of getting 215 on the board press and are getting nothing but kudos from guys like brian mincher. There is no reason not to be as supportive.
For some people, being told they ain't shit is good motivation. But for most people "Good job bro, 405 is just around the corner" works best. So I would like to join the people giving you the 'attaboy.
Second: you should not have juiced if you were that far away from your genetic potential. I am one of the LEAST athletic fucks on the planet. I am not going to get into details but I will probably never weigh over 200# or have 20" arms. However I have squatted over 300# for 5+ reps. After working out for about 1 1/2 years. Never did a 1 rep max because it's too dangerous (accarding to my strength coach). But I tested out at over 400# on a balls-to-the-wall AMRAP test. So I also agree with the people who say you need to stay away from the juice for a couple years while you get your training, diet, and overall potential sorted out.
JC