Wagering on roulette can be pretty boring. The reality is you can play however you like and you have a strategy you like then by all means go for it.
The one thing I will say is that the “Martingale” system is not a valid system. First of all you do not have an unlimited balance and even if you did the casino table limits completely prevent the method from working. It’s a popular known method but there was a reason it was popular in the 18th century. Game theory was far less advanced at that point.
You can do it if you want but it’s not the optimum play.
The best strategy would be to bet the minimum (usually £1) on either red or black (doesn’t matter if you change each time or stick to one). You’ll be almost 50/50 with the small edge going to the house due to the 0. Some offers restrict this and wagering has to be done on a different market for specific ranges (like 1-18 etc…)