What's the best way to use my Direct mail budget

[Wilson Washington]

Hi, I'm new to Biggerpockets. I'm looking to start wholesaling to get my feet wet as an investor to build some capital.

Currently, I only have about 1,000 dollars to spend on a direct mail campaign. I keep hearing that DM works better over time. My question is: 

  1 - Do I use the whole amount at one time or spread it out over time ie, $500 for 2 months or 300 for            3 months etc.

  2 - With this being my 1st campaign. I'm not really sure what kind of list I should use for the best results. 

Thanks