I have grown hundreds of container citrus trees and meyer lemons are finicky. In general citrus aren't terribly happy indoors where it is quite dry. I have mine in a greenhouse in winter where it is fairly humid and they all do great.... except the meyer lemon which is never all that happy.
I strongly suggest a non-meyer lemon. The grocery store types 'Eureka' and 'Lisbon' are great, and commonly available. Also Pink Variegated Eureka makes a pretty striped and pink-inside fruit, though less productive than the others.
I have grown many lemon trees and they are all kinda similar (except meyer which is a hybrid)