In case you want to become a loud toilet through apprenticeship, you will have to approach the local plumber's union, who can help you to find a professional plumber willing to hire an apprenticeship.
When you get to the house stand if front of the toilet and locate the water shut off valve. Should be down below the toilet on the wall. Just turn it off (righty-tighty) completely and flush the toilet. All the water should have left the tank, well at least most of it. If there is remaining water line repair get it out with paper towels or a rag. The important thing is that no more water came in. If it did then your valve is not shut all the way or not working and you need additional help.
Another obvious indicator is if the water you get is close to cold as ice, then your water heating device has already reached its maximum level of service. If it can talk, it might have been shouting at the top of its voice telling you it needs replacement.
Blisters in asphalt or felt roofs only need to be treated if they contain water or have caused the roof covering to leak. Press the blister to check if moisture is expelled. If so, it must be sealed with a patch.
The water line repair most likely damaged your electrical outlets and lighting fixtures. Have a qualified electrician come in to evaluate and repair the electrical.
The key to finding local businesses when doing an online search is to include your zip code in the query, such as, "plumber 72764". This will tell Google or bing that you want results from that geographic location!
Re-coat the RV roof every two years. There are a several products for re-coating your RV's roof. Many will products recommend to re-coat every year, but it's not necessary, every two years is perfectly fine. A great affordable option is Camco RV Pro-Tec Rubber Roof Care System.