1st question: Give me 3 ways to boost dream recall. (Not really a question)
The ones melanieb mentioned, plus be consistent in your dream journal. It's not the writing that it's important (but don't tell anyone I said this xD) it's the habit. The habit will get you used to a fixed schedule every day when you wake up, making recall much more solid. Brushing your teeth is not a big deal right? You just remember it naturally and perform it without even thinking it's taking you time and effort. This is because it's so well integrated in your routine. Oh, and I'll repeat what she said once again: regular sleep schedule! Makes you wonders for things like recall, WILD, WBTB, and even energy levels during the day.

2nd question: Is this a good mantra for the MILD technique? I'll realize I'm dreaming and become lucid.(I'm asking you guys because you are the pros)
Like melanieb, I also think a short mantra is more helpful, but get one thing straight: MILD is not about mantras. MILD is about prospective memory. Some people choose to use mantras as the mnemonic, so, as you can guess, it's not the words you say that most influence the outcome: it's what they imply. It's just like saying the word "pokemon": you immediately know what I'm talking about. You want to use a mantra as a tiny reminder of your whole intention. Something small is the most helpful because otherwise you wouldn't really need a mantra if you know what I mean ^^