You can control it cut your losses now. You are in a better position than most you still have money. Most of us don’t because we gambled it away and had to hit rock bottom before we even acknowledged there was a problem. If you chase just once in your life the bug is in you. Normal people lose 20 bucks and walk away you lost 7k on horses that’s a complusive gambler you chased you have a problem. But it is not the end of world just stop now and look at it like one big mistake but if you continue to gamble for sure it will happen over and over again till your down 70k. Let me be the first to tell you Gambling is the worst thing you can do for a supplementary income because you will lose in the long haul not just money but time and the damage it does to your pysche is horrendous you only lost 7k if you have a job your guaranteed to make that back if your don’t gamble again.
Best of luck to you and remember bet free is the way to be.