Flash Player is being phased out as it has become largely redundant on most media websites using modern web browsers which support HTML5, not to mention that Flash Player has had to be constantly patched to close security loopholes, and it frequently crashed anyway when used as a plugin - - I no longer have Flash Player on any of the PCs in my household.
So it's up to websites now to start supporting HTML5 like Youtube and many others already do, and that's more likely to happen sooner if those outdated websites are boycotted until they are brought up to date.
Getting a new computer won't solve that problem at all.