Personally I just go on random websites when I'm bored.

I also agree that it's unhealthy. However, I find that even just a 20 min exercise 3 times a week adds in a lot of benefits not just for the body but also for the brain.

Yes I definitely will tell them as they are my friends.

I can say this with confidence that most successful traders are private. They trade mainly for themselves and if they offer you coaching lessons it won't even make a difference to them as they are already making money.

online Gambling can be fun and addictive however you should realize it is mostly luck and very little skill. You can, however, increase your chances of winning by increasing your skillset.

I would suggest you always use a vpn. This way you can also stay private and anonymous. On top of that as you mentioned I would also recommend a good anti-virus software.