[Soulspinner]

Start by learning to change your oil, it's a very simple process. Also learn to adjust your chain and lube it, again this is simple and there are good YouTube videos to help you through the process.
I would advise you to have your mechanic do the brake fluid change.
Most folks I know, even those who have been riding for many years have thier tires replaced by a shop.

 

[Soulspinner]

Get a rear stand.
Changing oil requires one wrench, oil filter wrench ( most of the time only requires hand tightening and loosening), funnel, and a oil container to drain your oil into.

Chain adjustment requires a couple wrenches for the axle, wrench or allen for the adjuster, rag, and gear oil to lube the chain.

No rotating the tires, when thier done replace.

Bleeding brakes requires very little, a hose and a plastic bag. If you choose to reverse bleed a large syringe. Again YouTube.