"Work through it myself" is almost a contradiction in this case. Definitely look into getting some form of counseling you can afford.
Another thing you can do in parallel is reaching out to other friends/acquaintances you might have lost touch with. Tell them honestly what you appreciate about them and that you'd like to revive the friendship.
In both cases you'll feel awkward and uncertain. It's normal. Also, don't expect any single relationship to fulfill your unmet needs. But making yourself vulnerable to others is the beginning of "working through it yourself".
Another thing you can do in parallel is reaching out to other friends/acquaintances you might have lost touch with. Tell them honestly what you appreciate about them and that you'd like to revive the friendship.
In both cases you'll feel awkward and uncertain. It's normal. Also, don't expect any single relationship to fulfill your unmet needs. But making yourself vulnerable to others is the beginning of "working through it yourself".