I'm more flexible in my right leg than left.

I'm close to the ground but not ground flat. Please help.

If you are that close I'm guessing you have been doing some regular stretching to get there (which is the main key to learning splits) though you could be just naturally flexible. If that is the case and you have hit a plateau very close to the ground the probable reason is that since most of the length of your legs is now on the ground when you do a splits stretch there is less leverage on your hips so the stretch is not as effective. You can increase the leverage in the stretch by raising your front foot on a rolled towel or blanket or a foan yoga block or roller. Like all stretches it needs to be gradual and controlled so keep your hands or fingertips on the floor or use a pair of props such as thick books if you can't reach.

When you stretch make sure you warm up first to make it safer and more effective. If you do star jumps, straddle jumps, split jumps, kicks back and forwards etc that will get your heart rate up and cover dynamic stretching at the same time. Knee down lunges and pigeon/swan pose are great preliminary stretches for L/R splits. You can make them deeper by bending your back knee and grabbing your foot or ankle with the hand on the same side. Japana (where you sit in straddle and lean forwards with a straight back to try to get your chest on the floor) and frog are great preliminary stretches for box splits. You need to hold all your stretches long enough to relax into them, either with patience and deep breathing or by inhaling, tensing against the stretch and holding, then exhaling and relaxing to push further. It also helps in L/R splits to sit upright, rather than lean forwards, so that your back leg gets stretched more and your weight helps to push you down.

okay, so i used to be able to stand up straight, and then litterally at the speed of light fall into the perfect splits! all three ways haha. i did this stretch where i lay on my back and put one of my lags up and my friend would stretch it as far into the splits as i could go and then when it started to hurt, hold it there until it got better,, then go farther. haha good luck!

Check out some Yin yoga. It involves poses on the floor and is for stretching muscle and fascia. The poses are held for 3-5 minutes, maybe longer if you're feeling looser. Give it a try. It really does help stretch you out quickly.

I'm more flexible in my right leg than left.

I'm close to the ground but not ground flat. Please help.