I am going to work on a few projects this year and might be looking for donations and loans.
On the donation part, I don't think it's advisable to ask for donations in here in the forum unless you will be talking personally to peoples in here and about the loan, even if it is for a project you will still be needing to provide a collateral if you are planning on gaining some investors in here.
If I wrote a business plan will their be anyone interested in investing in me?
If your business plan sounds promising and maybe why not? If your project has potential then I think you could get some few eyes here to look in it.
If not I can just keep saving my money and do each project one at a time.
I thi k this is your best option. Save money for it so you won't be thinking on where to get the money or whatever.