If anyone created a coin haw can it last long in market ?
Good product, big community, supported by so many major exchange sites, big adoption rate, future roadmap and many more. The main important thing if that must be useful for the people who have been using the coin.
Most coin's max. survive for 5 yrs where they lack ?
Legit coins already expected to be survive forever. Garbage coins will survive only in short term. That's different with legit coins that will be surviving forever. If you're thinking a coin has time span to live in the market and that's wrong.
What is the best possible ultimate coin launching strategy under current market condition?
There's no launching strategy as long as you have been developing a good and useful product and this can attract people or adoption to come in your project.
The key should be you must become a honest and trusted developers that has enough competence to create useufl product.