gambling is not so safe online because of the risks you discussed which are against our security. If you want to stay away or want to get rid of these insecurities then simply follow gambling in casinos or any other place where you can start gambling where there gamblers follow the rules to play on a good manner. Online gambling is very good on rated sites but if you are not sure about it then follow traditional way.
It is not like there is no rules in gambling online as there are still some terms and conditions, but the only thing here is you are all to yourself and you really would not have much rule to break since all you have to do is play and do whatever you feel like.
It is highly impossible to cheat the system anyway and most of the time, with the provably fair, you are still losing anyway. One thing though is that with real casino, I feel there are better chances of winning with some strategies and a lot of luck than in online casinos.
Gambling on the whole is not good and people in your society will disrespect you, because opinion about a gambler is not good and a gambler always face negative attitude. Anyway I think that one should not gamble with his crypto because crypto is not only money but also a business and you should never use your business in gambling.