In that case, don't be rushed into anything, unless it is absolutely pressing like you need to secure your safety. The solicitor is there to give you advice, you can take your time to decide how to instruct him or her, because I think if there will be a lot of pressure, it is good to know where your boundaries are, what you are prepared to compromise on and where there is no room for manoeuvre from your POV. To be honest, the best advice and action my solicitor took at the start simply involved buying time, getting an interim solution in place, till the initial hostility calmed down and I could think straight, or at least straighter.
For me, the first solicitor I saw was not the one who ended up representing me as I found her manner awful. It took me six weeks to get up the courage to see another, so your fears are normal. A good solicitor will put you at ease and make things seem more manageable.