No need to divide it, if you have $10k which you want to use to invest in Bitcoin using lump sum strategy you just buy with it at once that is what lump sum is all about and then you hold, some people after accumulating Bitcoin using the lump sum strategy at a point they even forget they have a Bitcoin investment and they usually hold there Bitcoin for a very long term.
I'm not saying DCA is not a good strategy is a very good strategy and that is what I'm using now because I don't have the capital for a lump sum strategy, however no body should try impose any strategy on anyone especially the newbies we should learn to discuss all strategy and let people make there choice.
Lump sum or DCA is a nice strategy and anyone we use let's make sure we are holding.
I think you should change your mindset, indeed Lump sum is also good but if we apply investment for the long term, isn't it better to buy gradually. If I think gradual purchases can be concluded that we can buy bitcoin at different prices throughout our investment period. You buy at $44k, $45k or depending on the bitcoin price on the day of maturity to buy, that way you have unknowingly bought at every dip that occurs because that is the advantage of DCA.
If you mean to forget about the wallet because you don't want to touch the wallet in the near future then you can buy $5k for a special wallet that you keep the key as well as possible and forget it for the time you want. Well the remaining $5k you can buy via DCA for other wallets so the point I can conclude is that we continue to follow up on bitcoin purchases and that is a great way to increase Bitcoin ownership.