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I currently know about 300 kanji but I'm forgetting how to read them, fast. Which is a better way of learning kanji:

Write them over and over and over again with the readings and memorize them the old fashioned way (and review intensely every day, but then you'll know how to read them)

OR

Do the Heisig thingy where you memorize only the MEANINGS of the kanji with mnemonics, but then you don't actually know how to read them in Japanese, thus resulting in you having to learn vocabulary instead of being able to "sound things out" (with trial and error of readings)

both have a downside. The first one, you forget them easily. However you know how to read in Japanese. The second one, you remember them, but you can't actually read them. Which is better? Which worked for you?

I do it the way I learned my first language:I write them down, and learn them one at a time. I figured how much time I have to learn them, (4 years) divide into how many I'm trying to get to in that amount of time, (2,000), and try and get the number to try to learn every day, +1. I review about once a week.

Oh, I use that. It's useful but I use it for mostly vocabulary (www.iknow.co.jp is great for vocabulary and I use anki for an extra review on the words I have trouble with). I tend not to use it for Kanji because then you don't learn how to write the kanji.

I know 1000 Kanji. I used basically a combination of putting them into Anki and writing them out a lot. It also doesn't help to learn some words that have the Kanji in it.