No one can really tell you if you should "invest big" into a project. They can recommend you a project that they favor but it comes down to your choice and your research. Do you genuinely believe that this project has potential? Does it benefit you in any way if you used it? If so go for it. My only tips are don't put all your eggs in one basket and make sure you're able to handle your investment going south. Investments in crypto are risky but can have huge rewards.

If you need somewhere to start with researching DIM I'd say first give their whitepaper a good read. After that check out their official reddit. https://www.reddit.com/r/Official_DIMCOIN/
Also be wary that DIM is ranked at number 495 in market cap. https://coinmarketcap.com/currencies/dimcoin/

Hope this helps with your decision and good luck.