Introductions discussion

Hi everyone, I just joined the site and wanted to introduce myself. I’ve been lurking for a week or so and am really drawn to chastity. I’ve been married two years now, but we’ve known each other twelve in total. Sex has pretty much vanished from our lives; my wife never cared much for it, and lately she doesn’t even think about it at all. I masturbate too frequently! Likely five times a week, sometimes twice on weekends. I realize this is hurting our marriage. I’m considering chastity to help curb the masturbation habit. The sissy or cuckold angles don’t appeal to me. But I’m terrified of bringing it up with my wife. What really worries me is that she might agree but then fail to engage sexually, which would be a letdown. I need something to reignite her interest in sex; it’s driving me crazy and starting to impact my daily life significantly. Has anyone else faced this? Would appreciate any advice.