Hi pqbd! With the current difficulty, you will likely need at least 1 million Linda to get a payment approximately everyday. You didn't mention how many coins you have, but if it's under 1mm, it could take awhile to get a reward. It might take 5 days, or it might take 20 days. Staking rewards are very random. You could try restarting your wallet and see if that helps. I've heard from the early devs (not the current ones), that restarting sometimes will result in you getting a staking reward in a few hours...especially if you've been staking a long time like you have. You won't have to wait for your coins to mature if you restart, they are already mature.

Also, to answer your question about staking weight. With Linda, your staking weight is not dynamic, and will only change when the number of mature coins in your wallet changes.

I hope that helps.