‎‎‎‎‎‎‎Could someone kindly correct the message below?
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Nastya: Hello. How are your successes in Russian?
Me: Hello! It's not well for now. I've been making progress English than Russian language. Currently I've been trying to understand Russian cases. It's too hard but not impossible.

See a translation

Corrections will be in brackets:

Today I thought a lot about the meaning of that feeling [that is] difficult to understand. I mean "love." I know what you're thinking. Again[,] another silly guy talking about this. Well, laugh at me if you want. For many years I stopped loving[, until] I almost [forgot] what it felt like to be loved. Today I saw a movie about this topic and thought much better about things. I understood better [that] when you really love someone, all your attention is on that person and what she/he loves. Suppose the son of the person I love needs a heart transplant. I would donate it to [her] son, even if that son was not mine, even if I was not part of her family, because I know that a child is all that a mother loves deeply. I don't know how much you would be willing to [do.] I would donate my heart. It would be better to do that than stay alone. I would be happy to save a life in this way.