Remember, love. It's the [i]quality[/i] of the post, not the [i]quantity[/i] of the words. 

Ah, descriptions. Always so fickle, always so tricky. I still have a hard time finding the words to describe a feeling or scenario. I suppose some tricks I use is to find pictures that resemble a setting or person or something in the RP, then try to find the words to describe what I or what I think my character feel about it. Smells, tastes, emotions. Incorporate some of it in your writing. Use similes and metaphors and fluctuating sentence lengths. Just [i]feel[/i] the words.

Additionally, write when you can and write freely. Read when you can, and look up writing tips online. Find fancy words, don't be afraid to break a few rules, and always remember to have fun.

If you wanna chat or use me as a practice dummy, don't be afraid to hit me up. I may not be the best writer, but I love to help a new friend out! ;D