No matter what, do not force your eyes to 'see' something. It is the stress of forcing eyes to do something that they can't do that causes the muscles about the eyeball to get out of balance and change the shape of the eye. That is what causes a loss of focus. Using glasses or any other lens also perpetuates and exacerbates the problem. No one needs progressively weaker glasses. It is always the other way.
Look up the Bates method of vision improvement. Read the good and the bad---there will be a lot of bad. I feel confident to say that the bad was due to people wanting to protect incomes, not "fix" eyes. Read all the references and decide.