How should I organize my life towards a PhD in the next year?
Get a job that allows you to do work in or related to the field you are interested in studying in - in a worst case scenario, do such work as a volunteer.

Self-study work you do is highly highly unlikely to be any value to an admissions committee, regardless of any "reports" or "implementations" or other work you attempt to produce - no one will have time to review things like that.

What you need to do is build evidence that you are capable of doing academic research. Evidence means references - people in positions where they can vouch for your knowledge and capability. Self-study will provide you with no references. Spend a little time searching around Academia.SE for all of the people who are asking what to do when they don't have enough references and are trying to apply to graduate school. Don't get in their position, there are few answers.

The ideal jobs would be in academic labs doing work similar to what you want to do in grad school under greater supervision. At my institution, these positions are typically called "research interns" (though they are paid positions) or "research specialist" - I have also seen titles like "junior scientist/researcher" - these are positions that typically require a bachelors degree and often go to recent graduates of the institution but are available to others. However, depending on your field, these positions may be rare or not exist at all.

If there is no such position available in your field, you are still much better off continuing to work another job while doing self-study.

Master's programs may require less research experience - in that case, you are likely already in a position to apply to masters' programs, where you can get precisely the experience I am describing to prepare you for a PhD. This includes systems like in the U.S. where it is common in many fields for people to apply directly for PhD programs without a master's degree.