The first question to ask is whether your CV is working for you and promoting you well enough to be noticed in the pile of applications and selected for interview. In addition to being a record of your work experience, your CV needs to overview you as a person, and your specific skills/talents you can offer an employer. It also needs to contain information targeted towards the sorts of work/jobs you’re applying for. Once your CV is refined and effective, you’ll get the interviews, and then it’s a matter of having your pitch ready. You need to study the job description carefully, imagine you’re the employer and create a list of your requirements for this position. Then assess how you measure up on these. Identify where you match well and prepare to sell these elements well. Identify your weaknesses and determine how you can allay any employer concerns here. Be sure of the 3 or 4 main differentiators you want to get across at interview and rehearse them to the mirror or with a friend/family member in advance of the interview. You’ll really improve your chances.