You should not be alone

When you think that you're alone, you should not be alone.
Especially if you're in a position where you should decide what to do, which way to go, how do things should be done, how do we organize things, how to we adhere to standards, etc.

Remember, you have your team supporting you, talk with them (not to them) and heaven knows, they will give you input that you never think of before.
It just a matter of gathering scattered information and from there on make the decision and learn from it.