Not being snarky at all here (preface), but if you think hitting off mats broke your swing, your swing is the least of your issues. As a newbie of 2 months, you need to get your swing in order. If you can distinguish between a well-struck shot and when you have hit it fat, it shouldn't matter that you have to hit off mats.
I know you said that you don't have the money, but if you want to get good at this game, you should look into lessons. Or at least figure out the things you need to do and get a good tripod for your phone and take video. You can use v1 app and draw lines and keep track of your progress.
You need to find the root of your problem and fix it. Some little tips like putting a gift card or towel behind the ball might help but may get you to swinging over the top and too steep--could work in the short run but the best bet is to fix your swing.
Look, you're only 2 months in to this game. Why not consider the long run of fun in the game and invest in it, instead of looking for short cuts and cheap tricks that wear off and fill your mind with nonsense that will only haunt you later on? I'm no shill for pros, but if you want to get the most out of your golf game, then make some money and invest it into your game. Don't mess up your swing and get a bunch of bad tips engrained before you even really get started. The short view of looking for quick tips is short-sighted and immature.
Best of luck.
pretty good idea here though.
First, to confirm, I was only referring to Bonvivant's dashing red ball, the original picture issue is very clear cut as previously discussed.
And as I posted, and you clearly agree, the likelihood is about as remote as remote can be. But on your hole liner point - which I agree plays a role in that very low likelihood - I simply note it doesn't prevent the possibility because: 1) there is no requirement under the rules for a hole to have a liner and 2) if used, the requirement is that it be sunk at least one inch below the level of the green.
So even just for hypothetical discussion, I think Bonvivant's picture poses interesting rules issues. And questions that the Rules do not or cannot unambiguously answer in their current form are very few and far between.