Forex Profitable traders - How consistent is your profit taking?

Hope this is the right section.

I've been trading for a couple of years now and feel I am just starting to turn profitable.
I have a question around taking profits. I use a trend following system, enter and exit on 4HR timeframe.

I often find my profits can swing around a lot. Sometimes I will be up 30-40% in unrealised profits, then they can pull back to 10%, then I might get to keep 20% when they close out.
Sometimes I can cash out a big chunk and be up 20-30% at the start of a month, then over the month end up losing a bit, finishing the month around 10% up, sometimes more, sometimes less. Generally positive though.

It can feel like in a week doing a lot of work, sometimes being down and making loads up and finishing positive. Sometimes being massively up at the start, then losing it all and closing for 0% or a loss.

Do you often find that your income stream is like this? Like 10 steps forward, 9 steps back? Make a million, lose 900k and be left with 100k for the month/year?

Just trying to get a hold as to what to expect really, or figure out if I can be doing something better.
Replies are greatly appreciated. Thanks

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