Noob-friendly "Bring all notes to the same volume" question?

[Leander]

Hello!

Another question from me: Is there a noob-friendly solution to bring all notes to the same volume or a similar one? Here's a flute recording. I am a beginner and some notes are more quiet than others. Using a channel envelope with gain and drawing everything manually takes time...normally, you use compressors etc., but I don't understand the technical side well. I only get very loud parts or distortion or nothing happens at all.

Is there a noob friendly solution to my problem? Every note should be about the same volume. Especially the second part has very low ones.