Disclaimer: These are my opinions only, play wherever and however you enjoy

I've been a Masters Warwick Top player for the past few seasons now, and I felt that Top lane as a role was too useless because I rarely had impact, regardless of how ahead or behind I was if the rest of my team was feeding. Also, alot of matchups are bad for warwick especially if you are first pick.

Recently, I roleswapped to jungle on my D4 account, and with almost no jungle experience, I was able to shoot to masters only playing Warwick. I then tried it again on my main account and won every game as well. You can see my progress on my opgg below.

Here's why I think Warwick Jg is really strong in lower elos:

1. I copied Krun's tank Warwick build (Titanic Hydra -> Hexplate -> Steraks - > Bloodmail) every game. This build is very strong and makes you impossible to kill while still dealing a lot of damage.

2. As a top lane main, you will have better mechanics than most people in the jungle, especially in lower elos. If you have enough experience on Warwick Top, you can use this skill to win every single 1v1 matchup against the enemy jgler and even 1v2.

3. The only "guide" I watched was watching Inspired coaching Dantes in the jg and just absorbed as much information as I could and applied it to Warwick. I think it's the best jg video out there, but very dense.

4. I queued Jungle Primary and Top secondary, so often if I got filled Top, so was the enemy top. This means I can just destroy them since they're autofilled.

5. Warwicks biggest weakness is his clear speed. You have to use 2 smites, and even then you might be late to scuttle. Good jglers that know this will make your game unplayable, but that won't happen until masters 400 lp+, so in low elo it's okay to be slow. You can try to fight the scuttle if you have prio, look for a gank or instantly reset and rotate to the other scuttle.

6. I often have really low damage due to the build, but I still get a lot of kills because Warwick tends to focus low HP people and is really good for executing. A lot of games I just run around the map and just kill everyone while trying to keep my farm up.

op.gg:
Jg Account: https://op.gg/lol/summoners/na/Taylor%20Swift-19890
"Main" Account: https://op.gg/lol/summoners/na/Swiftie-awooo