I read your other thread, I don't think people were saying you're in a bad position as such, how could that be, you have good incomes, pensions, secure housing and more than twice your income in savings? Do you really need to ask the question? I think the critique you were getting on your other thread was more that in the nicest possible way you could probably be a little better educated on financial matters to make your clearly pretty good financial situation work better for you.
I think you are in Ireland, correct? Not being in the UK makes a huge difference, and the fact you didn't mention that upfront I think shows a little of what I mean - one of the most important ways to be savvy about your money is understanding how and why you are paying tax and how (entirely within the system and legally, not talking about anything dodgy here) you can maximize your income while avoiding paying extra unnecessary tax. People are mistakenly advising you on products like ISAs and premium bonds based on the UK tax system and products available in the UK market. You need to understand what the tax system is in your country for what tax-efficient savings mechanisms are available there. It may all be completely different where you are.
But as general/universal advice you only want to keep 6ish months salary in cash as an emergency fund (and even then it should be earning some interest albeit usually less due to being in an easy access fund). So you are definitely too heavy in cash, unless you have some foreseeable event coming up where you need that money accessible rather than it being intended as long-term savings. I'd say you should probably be looking to invest 50%-75% of your savings and to set up some regular investments for your monthly £2k savings. Personally I'd do a mixture of medium and low risk investment vehicles, but risk appetite is a personal thing. Or potentially you could use some of your cash to reduce your mortgage but you need to understand what interest you are paying on that and how that compares to the interest you would earn in an alternative investment - usually the investment returns outstrips the mortgage interest but it depends on your risk appetite and, as I say above, the tax regime. Again, seemingly not knowing what mortgage interest rate you are on or not sharing that when you're asking the question shows a bit of a lack of knowledge, as this is absolutely fundamental to decisions about whether to overpay or not...
I don't mean to be harsh here, it's understandable to be a bit clueless about money, plenty of people are but there's plenty of good resources to educate yourself out there...