This might be more personal as well confidential to we all, but if you're to share your thoughts or advice one on how to spend he's/her 1btc what would that be ?
Estate management ?
More in Bitcoin ?
Investment in the Stock market ?
Maybe your ideas might or will be helpful.
How do you spend more to bitcoin with one bitcoin? Do you mean leverage trading? I would stay off from that unless you are feeling very lucky, because with leverage, there's a real change of losing a LOT.
And what comes to other stuff, you can invest poorly by your own with stocks real estate or with cryptocurrencies when you have no idea what you are doing. If you want safety, contact an expert. If you want high risk high reward scenario, invest cryptos (but do research, not just any cryptos).