You don’t have to feel sorry about that, rather what you are doing is exactly right, namely questioning these models. It is a life investment and it should fit.
I have problems, also because this forum here is glitchy and very, very slow, downloading the files. Please send them to my email address.
In the first model, I recognized a life insurance policy, that is a disaster model. Maturity payment - you only pay interest - compared to a repayment form that is expensive, has no guaranteed maturity benefit and does not assure whether this company will still exist in 20 years. Google customers who wanted to pay off their house with a life insurance policy 20 years ago to see where they stand today. There you’ll be shaking your head in disbelief. Life insurers have big problems, they will overcome them, but I definitely cannot recommend paying off my house this way.
Please send me the files as mentioned for analysis to my email address.