Whatever your age or circumstances things do not always work out as planned or expected so we have to adapt.
If your lifestyle is unpredictable then you will not want to be tied to a loan with strict conditions which will not give you the freedom to make the most of opportunities as they arise.
Many cheap rate loans deals will limit your choices just at the time when you most need flexibility but a flexible payment deal could be an option if you are looking for some extra finance now. You can repay the loan gradually over a period which is appropriate for you. The advantage is that this is not set in stone at the start but can be negotiated over time. Monthly repayments can be adjusted according to circumstances. Perhaps you need to reduce payments to concentrate on other things in your life but then a salary increase gives you the chance to raise your loan payments.
If you are a homeowner then you will have a greater choice of deals at lower rates. This is because you can use your property as security on a loan. Since the risk to the lender is therefore reduced they can pass on savings to you as lower interest rates.
Even if you do not own property flexible repayment loans are still available. You could look at longer term loans to reduce monthly outgoings. Any decision will depend on the purpose of your loan amongst other things. For example it is not advisable to take out a long term loan for a car which will only last few years.