IF the "mental health place" does not block individual users, you could just log-on as somebody who is not blocked [happy hunting!]
OR IF the "mental health place" does not block ALL PCs, then just find an unblocked PC [again, happy hunting].
IF the "mental health place" assigned you a log-in name, THEN the first suggestion may work, BUT many of those "mental health places" block everybody.
Its in your tools settings
Maybe you should focus on oh I don't know..... your mental health? instead of trying to get into stuff that the facility doesn't think you should be getting into. There's a reason they block sites like that.