How can I get an appetite suppressant with a kick like the one Adderall (dextroamphetamine and racemic amphetamine) gives you, without a prescription for adhd?

A "kick" ? Medications like Adderall (dextroamphetamine and racemic amphetamine) are not available without prescriptions. There are medically supervised weight loss plans though -- these may include medications to help suppress appetite. You could consider enrolling in one and being seen there.