As far as your hair removal you are not really a good candidate. You could treat the black hairs (if you stopped tanning) but unless you have a lot of them, you would probably be better served by electrolysis.
The tanning is another issue. I hope you are still pretty young. If so, take a look around you at some of the older woman walking around who look really old, yet are only in their 40s. Talk to them, they will tell you that they tanned heavily when they were younger.
There are two types of Ultraviolet light that reaches the earth’s surface (not countint the stuff under the ozone hole in Antartica). These are UVA and UVB. UVB is what really tans you and is what probably is most implicated in skin cancer. But the UVA is a deeper penetrating wavelength and is what causes skin damage and most aging. Melanin doesn’t do a good job of blocking it. The single biggest thing one can do to look younger all your life is to stay out of the sun and use a sunscreen with zinc oxide every day of the year.
A little aside. Why do we have melanin? What is the evolutionary advantage of it?
Most people would say to prevent skin cancer. Except that skin cancer occurs later in life and usually long after one has children and have passed on your genes. So there is no evolutionary advantage to preventing skin cancer. In fact, for most of human evolution, our life expectancy was less than the average time to develop skin cancer.
Actually, ultraviolet light is implicated in destroying folate in the skin and causing folate deficiency. Folate deficiency is related to birth defects. With today’s diet, it isn’t an issue but the thinking is that melanin was developed as a means of maintaining high levels of folate during child bearing when nutritional levels were much less robust. Just an FYI.