Go to Dark horse mine as often as possible through out the day. Send your horses to work on Careers. Sell gems you find in the mine. It takes time but you'll get there!

Have your horses go to work in the Career Center! It's an easy way to earn bits.

Head to the mine - you can find $ as well as sell any gems you find in the marketplace. 

Host shows - the lower level shows usually get a decent number of entries abd you get the fees they pay. 

Catch wild horses - they can usually sell for a decent amount!

I sent over a little bonus as I know it's hard to earn those bits at the start! Trust me, it gets easier!

Okay Thanks!