I spend a minimum of  8-9 hours a day on my mobile phone. I have one mobile for bitcointalk forum/trading and another for my normal day-day businesses. I do this to secure my bitcointalk account and trading accounts from hacks, viruses, phishing attacks from public WiFi e.t.c this is a safe practice to protect one's information. Do not make the mistake of overlooking your data privacy.
When I pick up my bitcoin mobile, I automatically focus all my energy here regardless of what may be happening in my surrounding. I never leave my phone unattended. It's locked and secure whenever I'm busy with something else. If you can't afford a second phone, you can follow the tips stated in this article
https://www.webroot.com/us/en/resources/tips-articles/how-to-prevent-phone-hacking-and-sleep-like-a-baby-again

Avoid unsecured public WiFi. Hackers often target important locations such as bank accounts via public WiFi that can often be unsecured due to relaxed safety standards or even none at all.

Turn off your autocomplete feature. By doing this, you can prevent stored critical personal data from being accessed.

Regularly delete your browsing history, cookies, and cache. Removing your virtual footprint is important in minimizing the amount of data that can be harvested by prying eyes.

Have an iPhone? Enable Find My iPhone. By turning the feature on in your settings, you’ll be able to locate your phone if you misplace it before the hackers can lay their paws on it.

Use a security app that increases protection. For Android owners, Webroot offers the all-in-one Mobile Security for Android app that provides antivirus protection and allows you to remotely locate, lock up and wipe your phone in the event you lose track of it. For iOS users, Webroot also offers a free secure web browser for increased mobile security on your iPhone and iPad.