indoor soccer is soo different

well I played my first indoor soccer game Saturday. It. Is. Hard!! I can hardly walk right and i slept until almost noon. it's so much faster paced than outdoor. you are always running and i got so tired. it felt like i had run the mile in seven minutes after. i almost threw up when i got home. oh well i guess i just need more practice. we lost our first game but it was our first time playing together. the other team had been together for about four years and was a comp. team. the score was 10 to 4. we did really good in the beginning but i guess we got cocky or tired but we were creamed. there isn't going to be any practices so we all have to practice at home. it was my first time playing indoor. there are no throw-ins unless it's kicked too high and hits the net above the walls, then you have to go about five feet from the wall and kick it off (while the ref throws to fingers to the side making you think that you have to move the ball further while really he's counting. you only have five seconds). you use the border walls around the field to kick it too, almost like passing. and the fullback, my position, can't just boot it to the end of the field. there are two red lines about 10 or 15 feet from each goal and if it doesn't bounce in the middle or roll over them then it's a penalty. substitutions are similar to hockey, you can call someone out at any time in the game. anyway it's not that its hard it's just a little too quick. you need faster reflexes and quicker feet and familiar with the wall. just not too close friends with it, it hurts when you run into it. all in all i have to buck up and play harder and practice more. start running in the morning or at night or something to get more stamina.