How do i get my tennis skills back again?

So, it's been ten years since I last played tennis regularly. On Sunday, a friend of mine played with me, and I have to say, my legs hurt, and I could barely return the ball. After an hour, I was beat. My backhand needs work, my forehand needs work, and...

I can't serve it at all.

What do you think the best way to improve my tennis skills would be, so I don't embarrass myself make my friend not play with me?

join a tennis class for beginners. that's what I did this summer and had so much fun meeting new people who sucked just as much as me!! (: haha, but it's great if you just want to refresh your memory.

Try going to your gym nearby if you have one practice there.
Or even go outside hit the ball up against your garage or your house or somewhere.
Keep practicing you'll get better
Make sure you stretch before, though!!!

I took a few lessons. A local pro will whip you into shape.

practice makes perfection ,s o just keep practicing

tennis is a life sport!! once you are in it, you have to play forever!!! haha
I think you should definitely get a coach and find a regular tennis partner (be it your friend or someone you find online like craigslist!)
Also, you should go to the wall after dinner. I do that every night and it is so relaxing and a good way to practice for a little bit.