Many meme coins are existing because people are following the hype but it doesnt mean its a good investment. Many investors already lose for taking risk investing in meme coins but missed to sell when the price already hit the ATH thinking it might increase further. Go to Shib or Doge if you like to include some meme coins in your portfolio.
To my surprise one of them was 20% in profit last time I checked ( after about a month ) the other one $50 in profit after one day. Not bad ! 
Its good that you profit but its risky. You'll never know when will the price might plunge. Its not sustainable to hold meme coins for long term because they're only existing due to hype. Thus its advisable to get out if you already profit and invest in other coins that has use case.