I'll start by saying that if you're asking for advice on how to quit crossdressing, you've picked a poor place to ask. People who have quit dressing don't typically remain active on crossdressing forums. The people giving advice here have chosen to continue to crossdress.
Crossdressing is something you choose to do so you can choose not to do it. It's your choice. When you get up in the morning you have a choice - bra and panties or tee shirt and briefs. Make the right choice. And if you've been occupying your spare time dressing in women's clothes, take up a new hobby. Golf, fishing, etc.
