I am very worried (UK) that the government retirement safety net may not be there for us, as the retirement age is being pushed up beyond 70 but I am not sure m

I am very worried (UK) that the government retirement safety net may not be there for us, as the retirement age is being pushed up beyond 70 but I am not sure most people can work full time that long without health issues. Nor can we assume that the exceptional stock market returns of the past 15 years will be repeated, which means we need to save more for the same result. I feel great pressure to earn a high wage in order to save a lot of it into a pension. This feel like a matter of survival.