It's a pity that I haven't seen that coin before its launch..
Do you think it is still possible to mine many Moneros as a single miner?
That depends what you mean by many. If this coin is very successful and goes up greatly in value, then whatever you can mine now will be worth a lot, and will seem like a lot compared to what people are mining in a few years. Similar to mining bitcoin in say 2011.
Only about 6% of the target supply has been mined. On the assumption that the coin is successful it is not even remotely too late (and if not then it doesn't matter). This is not a premined or instamined coin.