How do I take my Ritalin?

I’ve been prescribed Ritalin as a stimulant for my ADHD for a long time. I’m not sure if it works, but it seemed to slightly work as to get me high. I only take 20mg. I’ve taken the cap off the capsule and dumping it under my tongue, but it tastes terrible. I’m wondering if there’s any other way to take it. I take more than the 20mg, but I’m just not sure how I can take it to get a quicker and better high.