If you want the best for your dog then go to a reputable veterinarian. Talk to him/her about your concerns and you will get all the "tips" you are looking for.. 350 pesos lng naman ang consultation.
Also, unless you have a good grasp of immunology and how exactly vaccines work, let the vets do it. Contrary to what others may think. You do not simply stick your dog with a dose of "5in1". Proper protocols and precautions are observe inorder to achieve effective vaccination and immunity. You might be doing more harm to your dog than good if you do it yourself. Vaccination is also the least expensive veterinary service at 350-500 pesos each shot. If you find that too expensive and your unwilling to spend that much for your pet, then i would suggest that you reasses wether or not you should really have a pet. Dogs just like humans do get sick in one way or another, even if you take extra good care of them. And when they do, It wont be cheap. Hindi naman sa tinatakot kita but you better make sure you are capable of providing whatever that dog needs.