To miss the ding deliberately is at least as difficult as hitting it, maybe more.
And I may recall to you one of golfers' virtues: patience.
You are fairly new to the game (4 days) and the worst of your scores has been a 38. This is excellent IMO.
I'm sure that you hit the ding well enough for now and that you'll hit it even better in the future.
If you are really bothered by your putting you might buy some balls with "extended feeling" meaning that they slow down the meter. I'm pretty sure you don't need it though!