Trading Idea: Sell GBPUSD

I'd like to start off by saying that I am not an experienced trader whatsoever, and this is simply an idea I'd like to post and receive constructive criticism on. On the 4H chart view, a I identified a downward trend, as well as what appears to be the formation of a double top. I also identified a "3 Bullish Soldier" pattern near the top of the second top, before the downwards trend. I'm not entering this trade, but if I did, I would enter at 1.28950, with a stop loss at 1.29350, and a take profit at 1.28500, which is where I believe a retest will occur. Please let me know your thoughts on this, thank you!

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It's crazy to see how far I've come since February.