If the plan is to start a business with a bigger contract in the long term, it is better to choose someone to work with. But if planning is just for yourself, I don't think it's necessary to involve other people into your personal matters because usually someone who is broken and fails to develop is also caused by someone you already trust too much. You can see examples of several other people who have made previous plans even though they are for different plans in terms of spending.
A person will always be more easily destroyed by his own friends if he trusts a friend too much and opens up every personal thing that he should keep secret for others (including his own friends). So you also need to sort this out in more detail before making a plan for something better, because knowing the purpose of the plan will also be much better before directly trusting someone to implement something.