Google will tell you if you are below the recommended daily budget and if you are losing clicks due to not having enough money. I recommend starting with enough of a budget to drive calls, but still be able to scale up by daily budget, once your campaign is dialed in. When you're getting traffic, you'll stop raising bids and start optimizing your KWs that are getting traffic. We call it low hanging fruit. After that is done, you'll raise your bids on the below first page bids only (in training under part 7 optimization).