This jam can be preserved by other methods than hot water canning, like pressure cooking or freezing. Follow the method that works for you and the space you have for storage. 

One of the challenges of making this or any other jam is orchestrating several processes, cooking the fruit, sterilizing things, and getting the hot water bath ready, so that it can all be done just as the jam is being boiled for the 2nd time. 

Note: While it may be financially daunting to get canning supplies like the jars, and a canning cauldron, they can be found at used shops like Value Village, and Find, or at garage sales for very affordable prices. Plus, as mentioned above, you can forgo this step and just freeze the jam in empty yogurt containers.