Memory problem. Words or names.

There are lots of things which i want to do in my life but not able to execute in actions,I m 30 years old i just left my business of hardware in between cause i was not doing well ,so i have started my jouney again on software developing in a company where i m working as intern.             My main problems are 1) I sometime forget simple names in my conversations,for eg if am explaining someone about something where i forget simple words,names of people,or even forget actual thing wht i suppose to talk. 2)I have done nothing in life especially my income not  as my expectations. 3)I m interovert kind so limited list of friends whom i expect more.Constanly thinking to chnge this attitude and tried many times to change but fali miserably. 4)wanted speak more but constanly fearing of forgetting something in between. Main issue is i want to imrove my speaking power and confidence of speaking without any fear of forgetting words or names. Thanks and regards.