Your plan should be to stick it out with your parents for another year (assuming that is an option) and start paying yourself that much “rent” every month into a high yield savings account. Add in a few hundred extra for what it would cost for utilities, cable , etc. to round up to $3k/month. Don’t touch that money for ANYTHING. Consider it gone. That’ll help you adjust to what it’ll be like spending it.

In a year, you’ll have a decent sum tucked away for what may be a falling housing market (depending on your market), which’ll give you options. If you want to rent at that time, you’ll have plenty of reserves available should something happen to your job.