Hi Libby ,
If you're planning on keeping the bike for the foreseeable future , I'd highly recommend getting a Haynes service and repair manual . There are degrees of difficulty when undertaking any job on your bike , but if you start with basic service items , Brake pad replacement and caliper maintenance , oil and filter change , air filter inspection and renewal , spark plugs , chain maintenance .

You'll find after tackling the above tasks that your knowledge of the bike and your confidence will automatically increase and maybe you'll feel like attempting more complex jobs .

A lot of folk really underestimate the value of regular cleaning . Apart from the fact that the bike will look nice and last longer , it allows you to identify any loose , degrading or broken parts that might otherwise be overlooked .

Also , there are some helpful members on this forum ,but you'll probably get fairly general info as not many people on here own your specific bike . Joining a forum specific to your bike can be a really valuable resource . Check out the link , there should be a list of CBF 125 Forums . You can visit them as a guest and have a browse to see if there's the amount of relevant info that suits you and your bike and maybe join one or two .

https://www.google.co.uk/search?q=ho...hrome&ie=UTF-8

As far as your bike being blown over , If it lives outside in the same place all the time , you could get a couple of these .........

https://www.amazon.co.uk/M12-Eye-Bol...rawl+eye+bolts

Maybe your Dad , other family member or friend could drill a couple of holes and drop them in . Once they're inserted , the eyelets can be unscrewed and removed so they're not a trip hazard . Whenever strong winds are forecast screw in the eyelets and strap the bike down with a pair of these.......

https://www.amazon.co.uk/Polco-Kwikl...luggage+straps