Silver birch help!

[StormCloud52]

I moved house four years ago and in an old water feature which was left here a weed started growing. I used an app to identify it and it has always said it’s a silver birch.

I feel quite fond of it now and even throw it some hose water now and again. Other than that, I’ve done nothing at all. However, this year it is bending slightly and also its bark has developed these white spots. It started as a weed but I feel bonded to it now so I suppose I’m going to have to look after it. Should I do something to help it stand upright and are these white spots bad or part of the peeling into silver process?

The OP's IS a silver birch - you can tell by its shape etc. It's just that it's young and they don't develop the white bark until they're older. I planted one in my garden about 7 years ago. It's about twice as high as this one but it still hasn't got white bark yet.

Yes, which I think has already been pointed out. Or rather than re-site it altogether, the OP could simply prune it or turn the pot round to face the other way, which would encourage growth on the other side.