The cap does not cover back and front pay; it only covers emotional and punitive damages. And the cap is $300K.
As noted, the $300,000 cap would apply to emotional distress and damages for any claims brought under Title VII of the Civil Rights Act, the Americans with Disabilities Act, and the Age Discrimination in Employment Act. The cap does not apply to awards of front or back pay or an award of attorneys' fees - that is, the court can order the defendant to pay some or all of the costs that it took you to bring the case. Caps may or may not apply if you bring state tort claims, a negligent infliction of emotional distress, for instance. Regardless, it is very, very rare for even a good employment case to settle or reach a verdict of $300,000. That doesn't mean that you shouldn't bring a claim. It still may be worth it. In most cases, an attorney can achieve a better outcome for you than you can by yourself. See the links below for places to look for an employment attorney. Avvo, of course, is also a good resource. Best of luck
Note that this is not legal advice and this does not establish an attorney client relationship. You should review your issue with an attorney for the best possible answer to your question.