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By Following Tutorial links you will surely upgrade yourself.
http://admin-page-framework.michaeluno.jp/
http://admin-page-framework.michaeluno.jp/tutorials/02-create-a-form/
http://admin-page-framework.michaeluno.jp/tutorials/13-add-a-meta-box-for-a-custom-post-type/
http://www.hongkiat.com/blog/beginners-guide-to-wordpress-plugin-development/
https://www.airpair.com/wordpress/posts/developing-wordpress-plugin-from-scratch
http://www.sitepoint.com/build-your-own-wordpress-contact-form-plugin-in-5-minutes/[/vc_column_text][/vc_column][/vc_row]