Yah right having the following listed above will help in bitcoin investment and the other thing one also need is good source of income without good income you won’t be able to secure a better investment in bitcoin, so that you be able to purchase using any method of your choice and you can also have some emergency funds to prevent any scenario that will lead to you tampering with your bitcoin .
Yes, you are absolutely right because even if everything is arranged to start investing in Bitcoin, if there is no good source of income, that's when investing becomes the most difficult for us. Anyone with a good source of income can invest in any method, but even with a lot of knowledge,a lot of courage and a lot of patience, those who don't have money may find that knowledge useless. So I personally think that to invest, one needs to be financially independent first, and then maybe when you think about investing that might be right. We may also need some emergency funds to continue investing smoothly without any interruptions.