Two points: 1. Your project is private so it is not possible to offer much advice on your PCB layout because it is not known what each trace is carrying (High voltage? High current? High frequency?). 2. Why etch the board yourself? You can get it done professionally and at very low cost directly by EasyEDA. Then you can have a 2 layer PCB with proper plated through holes and more routing space for a cleaner layout. As long as you choose appropriate PCB footprints for the components you are using then you do not need to worry about hole sizes, pad dimensions, trace widths etc. * If you must etch and drill it yourself, then 1. make the traces wide enough that you can be sure that they will not be accidentally over-etched and end up too narrow; 2. drill the holes to the drill size - or the nearest *larger* size that you have - given in recommended PCB footprint in the datasheets for the devices you are using. Do not use drill sizes smaller than recommended in the datasheets. :)

Is there a way that i can share the the project with you and get help ?? on seeing the pad properties the minimum hole i have in the project is 0.7 mm is it possible to drill such a small hole ? or else i should increase all components hole to 1mm and pad to 2mm ,Regarding the easyeda order since i am from india i doubt the price for ordering it will bemuch higher than ething manually. can i sellect all the pads and change thier sizes at a same time if so how?

To understand how to use EasyEDA, including how to share your work, please read the Tutorial: https://easyeda.com/Doc/Tutorial/ Thanks.

I generally drill components holes at 0.8mm. I use a 12v hand held PCB drill mounted in a cheap drill press from ebay. It seems to work ok for prototyping and any componanents that wont fit in the hole, e.g. terminals I go up in size a bit to maybe 1.0mm. I don't get my boards done professionally as I am mainly prototyping one-off projects and will change the board design several times before going to manufacturing. Only when it's all finalised do I get it manufactured.