I was freelance for about 10 years while DCs were small, and two years ago decided that I'd had enough of the uncertainty, isolation and lack of feeling like I belonged anywhere.
My experience is in traditional media, through to PR, marketing and external comms.
However, my skills were slightly outdated, and my confidence low. I still wanted something part time to fit in with family commitments and a partner who worked away much of the week.
I applied for jobs well under my skillset and ability at first, such was my low confidence. However I soon realised during interviews that this wasn't the right thing to do. I then applied and got a part time role in which I could use my skills and get up to date with new technology. After a year, I spotted my 'dream job', applied, got it, and am absolutely loving it.
I'd say don't undersell yourself, have a good look at where your skills and experience can be transferred, think laterally about the type of area you'd like to work in.
Use LinkedIn to make contacts and be on the radar of recruitment consultants. Contact recruitment companies and be open to roles even if they're not perfect, just to get yourself back out there and understand what you need to develop. Use your contacts!
Good luck with it all.