1) You have an in built support network and cheer-leading squad
2) Your reach is doubled/tripled/quadrupled by the number of people in your team. Everyone wants to see you suceed, and this is multiplied by the number of people involved.
3) Cliche alert, but many hands do make light work.
This isn’t saying that you can’t do it on your own. You totally can. But have a think about it, it may be easier with a few friends 🙂 And, don’t be afraid to ask!