You're a New Coach but are trying to learn as you go.
Perhaps the reason you are at this site is that you are brand new to coaching youth soccer and you're trying to find something to help get you started. Your local club "talked" you into coaching because no one else would and your child wouldn't play if there was no coach.
There is a vast amount of difference in how soccer organizations train (and fail to train) their coaches. Some organizatons stress the fact that you have to have higher and higher licenses to coach as one moves up in divisions. The threat of sanctions and disciplinary actions loom over a club if they don't adhere. The reason for this, of course, is to ensure that players get the proper coaching.
More often than not, courses are administered so that anyone who shows up gets a license as long as they pay their money. No follow up occurs with the theory that the local clubs will do that. Larger clubs, where there is a larger pool of experienced coaches and administrators ( with money) are able to to this, but smaller and newer clubs may not have that luxury.
Rarely will you find local youth oranizations where the volunteers on the Board of Directors aren't under some fire from disgruntled parents. The volunteers get tired of it and new people take over, sometimes through an unfriendly move. What these unstable boards cause is a lack of experienced people to help the inexperienced.
If you have the luxury of having experienced people around, ask for their help BEFORE your first practice. They are usually eager to help but won't come forward to volunteer unless asked. If you have a Director of Coaching Education and Player Development, get hold of that person.
Now, suppose you have no one around to help? Since you are able to access this site, I can only assume that you have access to the Web. Start surfing before your first practice. There is a sea of information out there, much more sofisticated and informative than this site. You may have to pay a small fee for some of these, but it should be tax deductible and worth the money. Without commercializing nor necessarily endorsing, I have found one site called www.soccerhelp.com a great resource and worth my money. There are many more out there.
Remember that without knowing the rules, you are like the blind leading the blind. LEARN THEM!
You'll find real quick that in Recreational Soccer (I must assume that you are starting in recreational and not competitive at your level of experience), the term "It's not about winning," is a nice term when people are on winning teams. In reality, not winning games is no fun to a team, no matter how much fun the coach is. As a new coach you must keep evey practice result fun and rewarding. I say result, because during practice there will be enough times that the players don't feel like being there, not intersted in the drill or "just not into it" that day. Result means that overall players and parents see you as a positive influence over the players and posses the knowledge to teach the game.
Teaching teams to win is not easy. Many times coaches are handed teams that have the "leftover" players on the team; those who didn't stay with their old teams or signed up late or whatever. No, you cannot wish a team to win and make it happen. Even a master carpenter can't do the job without tools and given all the tools, a young person wishing to be a carpenter without having the experience can't either.
Give the tools to the team. The tools are all the basic skills you teach they need to function as a team; not an individual. Try to find the type of drills that always involve more than one player to do. That will build team work. Once players realize that they have to include the rest of the team to play a good game, they will eventually surprise even themselves at how good they are. And if your team doesn't win games, hopefully they stay together and form as a cohesive group who will at a later date. Just keep them interested in the sport!
