I've used coinbase for years. I've also been in crypto since 2013. Your attitude is a dangerous one, but it's not necessarily wrong. You have to be willing to wait if you want to make the money you're hoping. The Dogecoin bubble seems like it's already burst, in which case it will be 2-4 years of stagnation/steady small decrease in price before another bubble. This shit has been happening for years with all of the big coins. Look up historical graphs of BTC, LTC, DOGE, etc and you'll see a pattern.
I dusted off my old 2013 dogecoin wallet to find 100 dogecoin sitting in it. I got it for free. I didn't buy doge then because it's just a copy and paste of LiteCoin with a doge meme for the logo. I opted to use my profits from Bitcoin to diversify and invest in coins that brought technological developments and new ideas to the world of crypto, such as Peercoin which is now worthless. In my mind, Ethereum and Monero are valuable prospects for future value, Dogecoin is iffy since the current value is really just reliant on a pump and dump model. But I've been wrong before and I'll continue to be wrong until I die