Are you breaking your show goal into multiple goals?
If you watch allot of models. You might see a pattern. Like it's cheap to get them semi naked. There a sense of progress and temptation to tip more. Then they spend most of their show semi or fully naked.
If your shooting for 150. Maybe that's 25 for shirt, 25 for pants, 50 for underwear, 50 for show.
Also, Starting off 150 USD might be too much for many tippers.
Especially if they're the only one tipping.
If some one has 50 or 100 to drop. They may not drop it if they don't think it will end up with a show.
Drive traffic to your room, build followers, train followers. Get people confident that there will be a show, and that your goals are achievable.
CB tippers get tokens at 100, 200, 500, 750, 1000. So keep that in mind while setting goals. 150, 200 is a much easier goal then 250. 450, 500, is much easier then 550.